diff --git a/dev/benchmarks/complex_layout/.metadata b/dev/benchmarks/complex_layout/.metadata
new file mode 100644
index 0000000..1b06421
--- /dev/null
+++ b/dev/benchmarks/complex_layout/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: ab51a0260d29d50800ae5c9665ecb01883a9b503
+  channel: master
+
+project_type: app
diff --git a/dev/benchmarks/complex_layout/android/.gitignore b/dev/benchmarks/complex_layout/android/.gitignore
new file mode 100644
index 0000000..6f56801
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/complex_layout/android/app/build.gradle b/dev/benchmarks/complex_layout/android/app/build.gradle
index a923d9f..df54855 100644
--- a/dev/benchmarks/complex_layout/android/app/build.gradle
+++ b/dev/benchmarks/complex_layout/android/app/build.gradle
@@ -5,8 +5,8 @@
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
-    localPropertiesFile.withInputStream { stream ->
-        localProperties.load(stream)
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
     }
 }
 
@@ -15,22 +15,43 @@
     throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
     compileSdkVersion flutter.compileSdkVersion
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
     }
 
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "dev.flutter.complex_layout"
         minSdkVersion flutter.minSdkVersion
         targetSdkVersion flutter.targetSdkVersion
-        versionCode 1
-        versionName "0.0.1"
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
     }
 
     buildTypes {
@@ -45,3 +66,7 @@
 flutter {
     source '../..'
 }
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/dev/benchmarks/complex_layout/android/app/src/debug/AndroidManifest.xml b/dev/benchmarks/complex_layout/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..9ec78ec
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.complex_layout">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/AndroidManifest.xml b/dev/benchmarks/complex_layout/android/app/src/main/AndroidManifest.xml
index 8200a24..4216295b 100644
--- a/dev/benchmarks/complex_layout/android/app/src/main/AndroidManifest.xml
+++ b/dev/benchmarks/complex_layout/android/app/src/main/AndroidManifest.xml
@@ -3,22 +3,35 @@
 found in the LICENSE file. -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.yourcompany.complexLayout">
-
-    <uses-permission android:name="android.permission.INTERNET"/>
-
-    <application android:name="io.flutter.app.FlutterApplication" android:label="complex_layout" android:icon="@mipmap/ic_launcher">
-        <activity android:name="io.flutter.app.FlutterActivity"
-                  android:exported="true"
-                  android:launchMode="singleTop"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
+    package="dev.flutter.complex_layout">
+   <application
+        android:label="complex_layout"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/java/dev/flutter/complex_layout/MainActivity.java b/dev/benchmarks/complex_layout/android/app/src/main/java/dev/flutter/complex_layout/MainActivity.java
new file mode 100644
index 0000000..a5604b1
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/java/dev/flutter/complex_layout/MainActivity.java
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package dev.flutter.complex_layout;
+
+import io.flutter.embedding.android.FlutterActivity;
+
+public class MainActivity extends FlutterActivity {
+}
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/kotlin/dev/flutter/complex_layout/MainActivity.kt b/dev/benchmarks/complex_layout/android/app/src/main/kotlin/dev/flutter/complex_layout/MainActivity.kt
new file mode 100644
index 0000000..9530275
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/kotlin/dev/flutter/complex_layout/MainActivity.kt
@@ -0,0 +1,6 @@
+package dev.flutter.complex_layout
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/res/drawable-v21/launch_background.xml b/dev/benchmarks/complex_layout/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..c7238f4
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/res/drawable/launch_background.xml b/dev/benchmarks/complex_layout/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..32d7798
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/res/values-night/styles.xml b/dev/benchmarks/complex_layout/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..455a16f
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/complex_layout/android/app/src/main/res/values/styles.xml b/dev/benchmarks/complex_layout/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..c5ad344
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/complex_layout/android/app/src/profile/AndroidManifest.xml b/dev/benchmarks/complex_layout/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..9ec78ec
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.complex_layout">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/complex_layout/android/build.gradle b/dev/benchmarks/complex_layout/android/build.gradle
index 013824e..6b39839 100644
--- a/dev/benchmarks/complex_layout/android/build.gradle
+++ b/dev/benchmarks/complex_layout/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {
diff --git a/dev/benchmarks/complex_layout/android/project-app.lockfile b/dev/benchmarks/complex_layout/android/project-app.lockfile
index eab1d1b..daa9380 100644
--- a/dev/benchmarks/complex_layout/android/project-app.lockfile
+++ b/dev/benchmarks/complex_layout/android/project-app.lockfile
@@ -134,13 +134,17 @@
 org.jacoco:org.jacoco.ant:0.8.3=androidJacocoAnt
 org.jacoco:org.jacoco.core:0.8.3=androidJacocoAnt
 org.jacoco:org.jacoco.report:0.8.3=androidJacocoAnt
-org.jetbrains.intellij.deps:trove4j:1.0.20181211=lintClassPath
-org.jetbrains.kotlin:kotlin-reflect:1.4.32=lintClassPath
-org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=lintClassPath
-org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.32=lintClassPath
+org.jetbrains.intellij.deps:trove4j:1.0.20181211=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-klib-commonizer-embeddable:1.4.32=kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-reflect:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,lintClassPath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.32=lintClassPath
-org.jetbrains.kotlin:kotlin-stdlib:1.4.32=lintClassPath
-org.jetbrains:annotations:13.0=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+org.jetbrains:annotations:13.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.junit.jupiter:junit-jupiter-api:5.7.0=lintClassPath
 org.junit.jupiter:junit-jupiter-engine:5.7.0=lintClassPath
 org.junit.platform:junit-platform-commons:1.7.0=lintClassPath
@@ -157,4 +161,4 @@
 org.testng:testng:7.3.0=lintClassPath
 xerces:xercesImpl:2.12.0=lintClassPath
 xml-apis:xml-apis:1.4.01=lintClassPath
-empty=androidApis,androidJdkImage,androidTestUtil,compile,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestRuntimeClasspath,debugAnnotationProcessorClasspath,debugReverseMetadataValues,debugUnitTestAnnotationProcessorClasspath,debugWearBundling,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileReverseMetadataValues,profileUnitTestAnnotationProcessorClasspath,profileWearBundling,releaseAnnotationProcessorClasspath,releaseReverseMetadataValues,releaseUnitTestAnnotationProcessorClasspath,releaseWearBundling,testCompile
+empty=androidApis,androidJdkImage,androidTestApiDependenciesMetadata,androidTestCompileOnlyDependenciesMetadata,androidTestDebugApiDependenciesMetadata,androidTestDebugCompileOnlyDependenciesMetadata,androidTestDebugImplementationDependenciesMetadata,androidTestDebugRuntimeOnlyDependenciesMetadata,androidTestImplementationDependenciesMetadata,androidTestProfileApiDependenciesMetadata,androidTestProfileCompileOnlyDependenciesMetadata,androidTestProfileImplementationDependenciesMetadata,androidTestProfileRuntimeOnlyDependenciesMetadata,androidTestReleaseApiDependenciesMetadata,androidTestReleaseCompileOnlyDependenciesMetadata,androidTestReleaseImplementationDependenciesMetadata,androidTestReleaseRuntimeOnlyDependenciesMetadata,androidTestRuntimeOnlyDependenciesMetadata,androidTestUtil,compile,compileOnlyDependenciesMetadata,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestApiDependenciesMetadata,debugAndroidTestCompile,debugAndroidTestCompileOnlyDependenciesMetadata,debugAndroidTestImplementationDependenciesMetadata,debugAndroidTestRuntime,debugAndroidTestRuntimeClasspath,debugAndroidTestRuntimeOnlyDependenciesMetadata,debugAnnotationProcessorClasspath,debugCompile,debugCompileOnly,debugCompileOnlyDependenciesMetadata,debugReverseMetadataValues,debugRuntime,debugRuntimeOnlyDependenciesMetadata,debugUnitTestAnnotationProcessorClasspath,debugUnitTestApiDependenciesMetadata,debugUnitTestCompile,debugUnitTestCompileOnlyDependenciesMetadata,debugUnitTestImplementationDependenciesMetadata,debugUnitTestRuntime,debugUnitTestRuntimeOnlyDependenciesMetadata,debugWearBundling,kotlinCompilerPluginClasspath,kotlinNativeCompilerPluginClasspath,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileCompile,profileCompileOnly,profileCompileOnlyDependenciesMetadata,profileReverseMetadataValues,profileRuntime,profileRuntimeOnlyDependenciesMetadata,profileUnitTestAnnotationProcessorClasspath,profileUnitTestApiDependenciesMetadata,profileUnitTestCompile,profileUnitTestCompileOnlyDependenciesMetadata,profileUnitTestImplementationDependenciesMetadata,profileUnitTestRuntime,profileUnitTestRuntimeOnlyDependenciesMetadata,profileWearBundling,releaseAnnotationProcessorClasspath,releaseCompile,releaseCompileOnly,releaseCompileOnlyDependenciesMetadata,releaseReverseMetadataValues,releaseRuntime,releaseRuntimeOnlyDependenciesMetadata,releaseUnitTestAnnotationProcessorClasspath,releaseUnitTestApiDependenciesMetadata,releaseUnitTestCompile,releaseUnitTestCompileOnlyDependenciesMetadata,releaseUnitTestImplementationDependenciesMetadata,releaseUnitTestRuntime,releaseUnitTestRuntimeOnlyDependenciesMetadata,releaseWearBundling,runtimeOnlyDependenciesMetadata,testApiDependenciesMetadata,testCompile,testCompileOnlyDependenciesMetadata,testDebugApiDependenciesMetadata,testDebugCompileOnlyDependenciesMetadata,testDebugImplementationDependenciesMetadata,testDebugRuntimeOnlyDependenciesMetadata,testImplementationDependenciesMetadata,testProfileApiDependenciesMetadata,testProfileCompileOnlyDependenciesMetadata,testProfileImplementationDependenciesMetadata,testProfileRuntimeOnlyDependenciesMetadata,testReleaseApiDependenciesMetadata,testReleaseCompileOnlyDependenciesMetadata,testReleaseImplementationDependenciesMetadata,testReleaseRuntimeOnlyDependenciesMetadata,testRuntimeOnlyDependenciesMetadata
diff --git a/dev/benchmarks/complex_layout/ios/.gitignore b/dev/benchmarks/complex_layout/ios/.gitignore
index 4111ddf..7a7f987 100644
--- a/dev/benchmarks/complex_layout/ios/.gitignore
+++ b/dev/benchmarks/complex_layout/ios/.gitignore
@@ -1,3 +1,4 @@
+**/dgph
 *.mode1v3
 *.mode2v3
 *.moved-aside
@@ -18,7 +19,7 @@
 Flutter/Flutter.framework
 Flutter/Flutter.podspec
 Flutter/Generated.xcconfig
-Flutter/ephemeral
+Flutter/ephemeral/
 Flutter/app.flx
 Flutter/app.zip
 Flutter/flutter_assets/
diff --git a/dev/benchmarks/complex_layout/ios/Flutter/AppFrameworkInfo.plist b/dev/benchmarks/complex_layout/ios/Flutter/AppFrameworkInfo.plist
index f2872cf..8d4492f 100644
--- a/dev/benchmarks/complex_layout/ios/Flutter/AppFrameworkInfo.plist
+++ b/dev/benchmarks/complex_layout/ios/Flutter/AppFrameworkInfo.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
   <key>CFBundleDevelopmentRegion</key>
-  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <string>en</string>
   <key>CFBundleExecutable</key>
   <string>App</string>
   <key>CFBundleIdentifier</key>
diff --git a/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/project.pbxproj
index 5bef028..d69d080 100644
--- a/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/project.pbxproj
+++ b/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/project.pbxproj
@@ -8,13 +8,11 @@
 
 /* Begin PBXBuildFile section */
 		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
-		746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */; };
-		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
-		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
-		FD5BB45FB410D26C457F3823 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B8D68AC3D397BBB4E666E1BF /* Pods_Runner.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -33,22 +31,17 @@
 /* Begin PBXFileReference section */
 		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
 		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
-		746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
-		7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
-		7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
-		91BB12E007FC9F72B2BD80CB /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-		AA78157F18C3F732B08DE050 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
-		B8D68AC3D397BBB4E666E1BF /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		FCA6E6FBD4F7F74B977EF1C0 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -56,36 +49,16 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				FD5BB45FB410D26C457F3823 /* Pods_Runner.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		1C15C5A8DBA6B24551F02D5D /* Frameworks */ = {
-			isa = PBXGroup;
-			children = (
-				B8D68AC3D397BBB4E666E1BF /* Pods_Runner.framework */,
-			);
-			name = Frameworks;
-			sourceTree = "<group>";
-		};
-		252DC2FA59A68238658BC28A /* Pods */ = {
-			isa = PBXGroup;
-			children = (
-				FCA6E6FBD4F7F74B977EF1C0 /* Pods-Runner.debug.xcconfig */,
-				91BB12E007FC9F72B2BD80CB /* Pods-Runner.release.xcconfig */,
-				AA78157F18C3F732B08DE050 /* Pods-Runner.profile.xcconfig */,
-			);
-			name = Pods;
-			path = Pods;
-			sourceTree = "<group>";
-		};
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -99,8 +72,6 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
-				252DC2FA59A68238658BC28A /* Pods */,
-				1C15C5A8DBA6B24551F02D5D /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -115,27 +86,18 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
-				7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */,
-				7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
 				97C147021CF9000F007C117D /* Info.plist */,
-				97C146F11CF9000F007C117D /* Supporting Files */,
 				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
 				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
 			path = Runner;
 			sourceTree = "<group>";
 		};
-		97C146F11CF9000F007C117D /* Supporting Files */ = {
-			isa = PBXGroup;
-			children = (
-				97C146F21CF9000F007C117D /* main.m */,
-			);
-			name = "Supporting Files";
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -143,14 +105,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
-				6775369589B76C7AEC8052F1 /* [CP] Check Pods Manifest.lock */,
 				9740EEB61CF901F6004384FC /* Run Script */,
 				97C146EA1CF9000F007C117D /* Sources */,
 				97C146EB1CF9000F007C117D /* Frameworks */,
 				97C146EC1CF9000F007C117D /* Resources */,
 				9705A1C41CF9048500538489 /* Embed Frameworks */,
 				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
-				36AA99DCB989DCADF00F3A93 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -172,6 +132,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -199,7 +160,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
-				746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
 			);
@@ -208,23 +169,6 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		36AA99DCB989DCADF00F3A93 /* [CP] Embed Pods Frameworks */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputFileListPaths = (
-				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-input-files.xcfilelist",
-			);
-			name = "[CP] Embed Pods Frameworks";
-			outputFileListPaths = (
-				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-output-files.xcfilelist",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
-			showEnvVarsInLog = 0;
-		};
 		3B06AD1E1E4923F5004D2608 /* Thin Binary */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -239,28 +183,6 @@
 			shellPath = /bin/sh;
 			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
 		};
-		6775369589B76C7AEC8052F1 /* [CP] Check Pods Manifest.lock */ = {
-			isa = PBXShellScriptBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			inputFileListPaths = (
-			);
-			inputPaths = (
-				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
-				"${PODS_ROOT}/Manifest.lock",
-			);
-			name = "[CP] Check Pods Manifest.lock";
-			outputFileListPaths = (
-			);
-			outputPaths = (
-				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
-			showEnvVarsInLog = 0;
-		};
 		9740EEB61CF901F6004384FC /* Run Script */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -282,8 +204,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */,
-				97C146F31CF9000F007C117D /* main.m in Sources */,
+				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -310,7 +231,7 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
-		24D15A8E21828735001BB33E /* Profile */ = {
+		249021D3217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
@@ -360,17 +281,23 @@
 			};
 			name = Profile;
 		};
-		24D15A8F21828735001BB33E /* Profile */ = {
+		249021D4217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.complexLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.complexLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Profile;
@@ -475,6 +402,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -485,12 +414,19 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.complexLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.complexLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -500,12 +436,18 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.complexLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.complexLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
@@ -518,7 +460,7 @@
 			buildConfigurations = (
 				97C147031CF9000F007C117D /* Debug */,
 				97C147041CF9000F007C117D /* Release */,
-				24D15A8E21828735001BB33E /* Profile */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -528,7 +470,7 @@
 			buildConfigurations = (
 				97C147061CF9000F007C117D /* Debug */,
 				97C147071CF9000F007C117D /* Release */,
-				24D15A8F21828735001BB33E /* Profile */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 3db53b6..c87d15a 100644
--- a/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/dev/benchmarks/complex_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -27,8 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
@@ -38,8 +36,8 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
+      <Testables>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -61,8 +59,6 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Profile"
diff --git a/dev/benchmarks/complex_layout/ios/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/complex_layout/ios/Runner.xcworkspace/contents.xcworkspacedata
index 21a3cc1..1d526a1 100644
--- a/dev/benchmarks/complex_layout/ios/Runner.xcworkspace/contents.xcworkspacedata
+++ b/dev/benchmarks/complex_layout/ios/Runner.xcworkspace/contents.xcworkspacedata
@@ -4,7 +4,4 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
-   <FileRef
-      location = "group:Pods/Pods.xcodeproj">
-   </FileRef>
 </Workspace>
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
index 87cdfb9..d36b1fa 100644
--- a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -1,110 +1,122 @@
 {
-    "images":[
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"1x",
-            "filename":"Icon-App-29x29@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"2x",
-            "filename":"Icon-App-29x29@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"3x",
-            "filename":"Icon-App-29x29@3x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"1x",
-            "filename":"Icon-App-40x40@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"2x",
-            "filename":"Icon-App-40x40@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"3x",
-            "filename":"Icon-App-40x40@3x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"1x",
-            "filename":"Icon-App-60x60@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"2x",
-            "filename":"Icon-App-60x60@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"3x",
-            "filename":"Icon-App-60x60@3x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"29x29",
-            "scale":"1x",
-            "filename":"Icon-App-29x29@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"29x29",
-            "scale":"2x",
-            "filename":"Icon-App-29x29@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"40x40",
-            "scale":"1x",
-            "filename":"Icon-App-40x40@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"40x40",
-            "scale":"2x",
-            "filename":"Icon-App-40x40@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"1x",
-            "filename":"Icon-App-76x76@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"2x",
-            "filename":"Icon-App-76x76@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"3x",
-            "filename":"Icon-App-76x76@3x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"83.5x83.5",
-            "scale":"2x",
-            "filename":"Icon-App-83.5x83.5@2x.png"
-        }
-    ],
-    "info":{
-        "version":1,
-        "author":"makeappicon"
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
     }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
 }
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png b/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
deleted file mode 100644
index 5d2bad8..0000000
--- a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
+++ /dev/null
Binary files differ
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dev/benchmarks/complex_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
index ebf48f6..f2e259c 100644
--- a/dev/benchmarks/complex_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/dev/benchmarks/complex_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -10,13 +10,20 @@
             <objects>
                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
                     <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
-                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -24,4 +31,7 @@
             <point key="canvasLocation" x="53" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
 </document>
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Info.plist b/dev/benchmarks/complex_layout/ios/Runner/Info.plist
index 6b7efee..1880e4f 100644
--- a/dev/benchmarks/complex_layout/ios/Runner/Info.plist
+++ b/dev/benchmarks/complex_layout/ios/Runner/Info.plist
@@ -7,7 +7,7 @@
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.yourcompany.complexLayout</string>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
@@ -15,11 +15,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(FLUTTER_BUILD_NAME)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
diff --git a/dev/benchmarks/complex_layout/ios/Runner/main.m b/dev/benchmarks/complex_layout/ios/Runner/main.m
index 7f1fdee..736a65a 100644
--- a/dev/benchmarks/complex_layout/ios/Runner/main.m
+++ b/dev/benchmarks/complex_layout/ios/Runner/main.m
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import <UIKit/UIKit.h>
 #import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
 
-int main(int argc, char * argv[]) {
-    @autoreleasepool {
-        return UIApplicationMain(argc, argv, nil,
-                                 NSStringFromClass([FlutterAppDelegate class]));
-    }
+int main(int argc, char* argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
 }
diff --git a/dev/benchmarks/complex_layout/linux/.gitignore b/dev/benchmarks/complex_layout/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/dev/benchmarks/complex_layout/linux/CMakeLists.txt b/dev/benchmarks/complex_layout/linux/CMakeLists.txt
new file mode 100644
index 0000000..871002a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "complex_layout")
+set(APPLICATION_ID "dev.flutter.complex_layout")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/dev/benchmarks/complex_layout/linux/flutter/CMakeLists.txt b/dev/benchmarks/complex_layout/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.cc b/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..e71a16d
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.h b/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..e0f0a47
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/complex_layout/linux/flutter/generated_plugins.cmake b/dev/benchmarks/complex_layout/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/complex_layout/linux/main.cc b/dev/benchmarks/complex_layout/linux/main.cc
new file mode 100644
index 0000000..281a29e
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/main.cc
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/dev/benchmarks/complex_layout/linux/my_application.cc b/dev/benchmarks/complex_layout/linux/my_application.cc
new file mode 100644
index 0000000..fb570a1
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/my_application.cc
@@ -0,0 +1,108 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "complex_layout");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "complex_layout");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/dev/benchmarks/complex_layout/linux/my_application.h b/dev/benchmarks/complex_layout/linux/my_application.h
new file mode 100644
index 0000000..8c66ec4
--- /dev/null
+++ b/dev/benchmarks/complex_layout/linux/my_application.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/dev/benchmarks/complex_layout/macos/.gitignore b/dev/benchmarks/complex_layout/macos/.gitignore
new file mode 100644
index 0000000..746adbb
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Debug.xcconfig b/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Debug.xcconfig
new file mode 100644
index 0000000..4b81f9b
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Release.xcconfig b/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Release.xcconfig
new file mode 100644
index 0000000..5caa9d1
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/complex_layout/macos/Podfile b/dev/benchmarks/complex_layout/macos/Podfile
new file mode 100644
index 0000000..dade8df
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Podfile
@@ -0,0 +1,40 @@
+platform :osx, '10.11'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+  end
+end
diff --git a/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..9d2ac2e
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,572 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
+		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
+		33CC10ED2044A3C60003C045 /* complex_layout.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "complex_layout.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
+		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		33CC10F72044A3C60003C045 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = Runner/Info.plist; sourceTree = "<group>"; };
+		33CC11122044BFA00003C045 /* MainFlutterWindow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainFlutterWindow.swift; sourceTree = "<group>"; };
+		33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Debug.xcconfig"; sourceTree = "<group>"; };
+		33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Release.xcconfig"; sourceTree = "<group>"; };
+		33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = "Flutter-Generated.xcconfig"; path = "ephemeral/Flutter-Generated.xcconfig"; sourceTree = "<group>"; };
+		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
+		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
+		33E5194F232828860026EE4D /* AppInfo.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AppInfo.xcconfig; sourceTree = "<group>"; };
+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Release.xcconfig; sourceTree = "<group>"; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Debug.xcconfig; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		33CC10EA2044A3C60003C045 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		33BA886A226E78AF003329D5 /* Configs */ = {
+			isa = PBXGroup;
+			children = (
+				33E5194F232828860026EE4D /* AppInfo.xcconfig */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				333000ED22D3DE5D00554162 /* Warnings.xcconfig */,
+			);
+			path = Configs;
+			sourceTree = "<group>";
+		};
+		33CC10E42044A3C60003C045 = {
+			isa = PBXGroup;
+			children = (
+				33FAB671232836740065AC1E /* Runner */,
+				33CEB47122A05771004F2AC0 /* Flutter */,
+				33CC10EE2044A3C60003C045 /* Products */,
+				D73912EC22F37F3D000D13A0 /* Frameworks */,
+			);
+			sourceTree = "<group>";
+		};
+		33CC10EE2044A3C60003C045 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10ED2044A3C60003C045 /* complex_layout.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		33CC11242044D66E0003C045 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10F22044A3C60003C045 /* Assets.xcassets */,
+				33CC10F42044A3C60003C045 /* MainMenu.xib */,
+				33CC10F72044A3C60003C045 /* Info.plist */,
+			);
+			name = Resources;
+			path = ..;
+			sourceTree = "<group>";
+		};
+		33CEB47122A05771004F2AC0 /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */,
+				33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */,
+				33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */,
+				33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */,
+			);
+			path = Flutter;
+			sourceTree = "<group>";
+		};
+		33FAB671232836740065AC1E /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				33CC10F02044A3C60003C045 /* AppDelegate.swift */,
+				33CC11122044BFA00003C045 /* MainFlutterWindow.swift */,
+				33E51913231747F40026EE4D /* DebugProfile.entitlements */,
+				33E51914231749380026EE4D /* Release.entitlements */,
+				33CC11242044D66E0003C045 /* Resources */,
+				33BA886A226E78AF003329D5 /* Configs */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+		D73912EC22F37F3D000D13A0 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		33CC10EC2044A3C60003C045 /* Runner */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
+				33CC10E92044A3C60003C045 /* Sources */,
+				33CC10EA2044A3C60003C045 /* Frameworks */,
+				33CC10EB2044A3C60003C045 /* Resources */,
+				33CC110E2044A8840003C045 /* Bundle Framework */,
+				3399D490228B24CF009A79C7 /* ShellScript */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				33CC11202044C79F0003C045 /* PBXTargetDependency */,
+			);
+			name = Runner;
+			productName = Runner;
+			productReference = 33CC10ED2044A3C60003C045 /* complex_layout.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		33CC10E52044A3C60003C045 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 0920;
+				LastUpgradeCheck = 1300;
+				ORGANIZATIONNAME = "";
+				TargetAttributes = {
+					33CC10EC2044A3C60003C045 = {
+						CreatedOnToolsVersion = 9.2;
+						LastSwiftMigration = 1100;
+						ProvisioningStyle = Automatic;
+						SystemCapabilities = {
+							com.apple.Sandbox = {
+								enabled = 1;
+							};
+						};
+					};
+					33CC111A2044C6BA0003C045 = {
+						CreatedOnToolsVersion = 9.2;
+						ProvisioningStyle = Manual;
+					};
+				};
+			};
+			buildConfigurationList = 33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 33CC10E42044A3C60003C045;
+			productRefGroup = 33CC10EE2044A3C60003C045 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				33CC10EC2044A3C60003C045 /* Runner */,
+				33CC111A2044C6BA0003C045 /* Flutter Assemble */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		33CC10EB2044A3C60003C045 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */,
+				33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
+		3399D490228B24CF009A79C7 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "echo \"$PRODUCT_NAME.app\" > \"$PROJECT_DIR\"/Flutter/ephemeral/.app_filename && \"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh embed\n";
+		};
+		33CC111E2044C6BF0003C045 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+				Flutter/ephemeral/FlutterInputs.xcfilelist,
+			);
+			inputPaths = (
+				Flutter/ephemeral/tripwire,
+			);
+			outputFileListPaths = (
+				Flutter/ephemeral/FlutterOutputs.xcfilelist,
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh && touch Flutter/ephemeral/tripwire";
+		};
+/* End PBXShellScriptBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		33CC10E92044A3C60003C045 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */,
+				33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */,
+				335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXTargetDependency section */
+		33CC11202044C79F0003C045 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 33CC111A2044C6BA0003C045 /* Flutter Assemble */;
+			targetProxy = 33CC111F2044C79F0003C045 /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
+/* Begin PBXVariantGroup section */
+		33CC10F42044A3C60003C045 /* MainMenu.xib */ = {
+			isa = PBXVariantGroup;
+			children = (
+				33CC10F52044A3C60003C045 /* Base */,
+			);
+			name = MainMenu.xib;
+			path = Runner;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		338D0CE9231458BD00FA5F75 /* Profile */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
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+				LD_RUNPATH_SEARCH_PATHS = (
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+				CODE_SIGN_IDENTITY = "-";
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+				GCC_PREPROCESSOR_DEFINITIONS = (
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+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = macosx;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
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+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
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+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Release;
+		};
+		33CC10FC2044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		33CC10FD2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Release.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
+		33CC111C2044C6BA0003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		33CC111D2044C6BA0003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}
diff --git a/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..7a28fb0
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "complex_layout.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "complex_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "complex_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "complex_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/complex_layout/macos/Runner/AppDelegate.swift b/dev/benchmarks/complex_layout/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d080d41
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..a2ec33f
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000..3c4935a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000..ed4cc16
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000..483be61
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
new file mode 100644
index 0000000..bcbf36d
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
new file mode 100644
index 0000000..9c0a652
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000..e71a726
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000..8a31fe2
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Base.lproj/MainMenu.xib b/dev/benchmarks/complex_layout/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000..537341a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Configs/AppInfo.xcconfig b/dev/benchmarks/complex_layout/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000..e3f6085
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = complex_layout
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.complexLayout
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2021 dev.flutter. All rights reserved.
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Configs/Debug.xcconfig b/dev/benchmarks/complex_layout/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000..36b0fd9
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Configs/Release.xcconfig b/dev/benchmarks/complex_layout/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000..dff4f49
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Configs/Warnings.xcconfig b/dev/benchmarks/complex_layout/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000..42bcbf4
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/dev/benchmarks/complex_layout/macos/Runner/DebugProfile.entitlements b/dev/benchmarks/complex_layout/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000..dddb8a3
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Info.plist b/dev/benchmarks/complex_layout/macos/Runner/Info.plist
new file mode 100644
index 0000000..4789daa
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/complex_layout/macos/Runner/MainFlutterWindow.swift b/dev/benchmarks/complex_layout/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000..a97a962
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,19 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/dev/benchmarks/complex_layout/macos/Runner/Release.entitlements b/dev/benchmarks/complex_layout/macos/Runner/Release.entitlements
new file mode 100644
index 0000000..852fa1a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/complex_layout/web/favicon.png b/dev/benchmarks/complex_layout/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/favicon.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/web/icons/Icon-192.png b/dev/benchmarks/complex_layout/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/icons/Icon-192.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/web/icons/Icon-512.png b/dev/benchmarks/complex_layout/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/icons/Icon-512.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/web/icons/Icon-maskable-192.png b/dev/benchmarks/complex_layout/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/icons/Icon-maskable-192.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/web/icons/Icon-maskable-512.png b/dev/benchmarks/complex_layout/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/icons/Icon-maskable-512.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/web/index.html b/dev/benchmarks/complex_layout/web/index.html
new file mode 100644
index 0000000..a845115
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/index.html
@@ -0,0 +1,109 @@
+<!DOCTYPE HTML>
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="complex_layout">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>complex_layout</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/dev/benchmarks/complex_layout/web/manifest.json b/dev/benchmarks/complex_layout/web/manifest.json
new file mode 100644
index 0000000..6114691
--- /dev/null
+++ b/dev/benchmarks/complex_layout/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "complex_layout",
+    "short_name": "complex_layout",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/dev/benchmarks/complex_layout/windows/.gitignore b/dev/benchmarks/complex_layout/windows/.gitignore
new file mode 100644
index 0000000..d492d0d
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/.gitignore
@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
diff --git a/dev/benchmarks/complex_layout/windows/CMakeLists.txt b/dev/benchmarks/complex_layout/windows/CMakeLists.txt
new file mode 100644
index 0000000..93b764d
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/CMakeLists.txt
@@ -0,0 +1,95 @@
+cmake_minimum_required(VERSION 3.14)
+project(complex_layout LANGUAGES CXX)
+
+set(BINARY_NAME "complex_layout")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Configure build options.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build
+add_subdirectory("runner")
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)
diff --git a/dev/benchmarks/complex_layout/windows/flutter/CMakeLists.txt b/dev/benchmarks/complex_layout/windows/flutter/CMakeLists.txt
new file mode 100644
index 0000000..b2e4bd8
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/flutter/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
diff --git a/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.cc b/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..8b6d468
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.h b/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..dc139d8
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/complex_layout/windows/flutter/generated_plugins.cmake b/dev/benchmarks/complex_layout/windows/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..4d10c25
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/complex_layout/windows/runner/CMakeLists.txt b/dev/benchmarks/complex_layout/windows/runner/CMakeLists.txt
new file mode 100644
index 0000000..de2d891
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+apply_standard_settings(${BINARY_NAME})
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+add_dependencies(${BINARY_NAME} flutter_assemble)
diff --git a/dev/benchmarks/complex_layout/windows/runner/Runner.rc b/dev/benchmarks/complex_layout/windows/runner/Runner.rc
new file mode 100644
index 0000000..3cfc38f
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/Runner.rc
@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#ifdef FLUTTER_BUILD_NUMBER
+#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#else
+#define VERSION_AS_NUMBER 1,0,0
+#endif
+
+#ifdef FLUTTER_BUILD_NAME
+#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.flutter" "\0"
+            VALUE "FileDescription", "A new Flutter project." "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "complex_layout" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2021 dev.flutter. All rights reserved." "\0"
+            VALUE "OriginalFilename", "complex_layout.exe" "\0"
+            VALUE "ProductName", "complex_layout" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/dev/benchmarks/complex_layout/windows/runner/flutter_window.cpp b/dev/benchmarks/complex_layout/windows/runner/flutter_window.cpp
new file mode 100644
index 0000000..9cbd310
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/flutter_window.cpp
@@ -0,0 +1,65 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}
diff --git a/dev/benchmarks/complex_layout/windows/runner/flutter_window.h b/dev/benchmarks/complex_layout/windows/runner/flutter_window.h
new file mode 100644
index 0000000..bbc5836
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/flutter_window.h
@@ -0,0 +1,37 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_
diff --git a/dev/benchmarks/complex_layout/windows/runner/main.cpp b/dev/benchmarks/complex_layout/windows/runner/main.cpp
new file mode 100644
index 0000000..a0da686
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/main.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.CreateAndShow(L"complex_layout", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}
diff --git a/dev/benchmarks/complex_layout/windows/runner/resource.h b/dev/benchmarks/complex_layout/windows/runner/resource.h
new file mode 100644
index 0000000..c245ff1
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/resource.h
@@ -0,0 +1,20 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/dev/benchmarks/complex_layout/windows/runner/resources/app_icon.ico b/dev/benchmarks/complex_layout/windows/runner/resources/app_icon.ico
new file mode 100644
index 0000000..2e4cc82
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/resources/app_icon.ico
Binary files differ
diff --git a/dev/benchmarks/complex_layout/windows/runner/runner.exe.manifest b/dev/benchmarks/complex_layout/windows/runner/runner.exe.manifest
new file mode 100644
index 0000000..c977c4a
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/runner.exe.manifest
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>
diff --git a/dev/benchmarks/complex_layout/windows/runner/utils.cpp b/dev/benchmarks/complex_layout/windows/runner/utils.cpp
new file mode 100644
index 0000000..077d1ac
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/utils.cpp
@@ -0,0 +1,68 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr);
+  if (target_length == 0) {
+    return std::string();
+  }
+  std::string utf8_string;
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, utf8_string.data(),
+      target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}
diff --git a/dev/benchmarks/complex_layout/windows/runner/utils.h b/dev/benchmarks/complex_layout/windows/runner/utils.h
new file mode 100644
index 0000000..54414c9
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/utils.h
@@ -0,0 +1,23 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_
diff --git a/dev/benchmarks/complex_layout/windows/runner/win32_window.cpp b/dev/benchmarks/complex_layout/windows/runner/win32_window.cpp
new file mode 100644
index 0000000..20c47ea
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/win32_window.cpp
@@ -0,0 +1,249 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "win32_window.h"
+
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+    FreeLibrary(user32_module);
+  }
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::CreateAndShow(const std::wstring& title,
+                                const Point& origin,
+                                const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  return OnCreate();
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
diff --git a/dev/benchmarks/complex_layout/windows/runner/win32_window.h b/dev/benchmarks/complex_layout/windows/runner/win32_window.h
new file mode 100644
index 0000000..1dab177
--- /dev/null
+++ b/dev/benchmarks/complex_layout/windows/runner/win32_window.h
@@ -0,0 +1,102 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates and shows a win32 window with |title| and position and size using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size to will treat the width height passed in to this function
+  // as logical pixels and scale to appropriate for the default monitor. Returns
+  // true if the window was created successfully.
+  bool CreateAndShow(const std::wstring& title,
+                     const Point& origin,
+                     const Size& size);
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responsponds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_
diff --git a/dev/benchmarks/macrobenchmarks/android/build.gradle b/dev/benchmarks/macrobenchmarks/android/build.gradle
index c9049d0..f7ec097 100644
--- a/dev/benchmarks/macrobenchmarks/android/build.gradle
+++ b/dev/benchmarks/macrobenchmarks/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {
diff --git a/dev/benchmarks/microbenchmarks/.metadata b/dev/benchmarks/microbenchmarks/.metadata
new file mode 100644
index 0000000..1b06421
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: ab51a0260d29d50800ae5c9665ecb01883a9b503
+  channel: master
+
+project_type: app
diff --git a/dev/benchmarks/microbenchmarks/android/.gitignore b/dev/benchmarks/microbenchmarks/android/.gitignore
new file mode 100644
index 0000000..6f56801
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/microbenchmarks/android/app/build.gradle b/dev/benchmarks/microbenchmarks/android/app/build.gradle
index 2190a0f..3404ffe 100644
--- a/dev/benchmarks/microbenchmarks/android/app/build.gradle
+++ b/dev/benchmarks/microbenchmarks/android/app/build.gradle
@@ -5,8 +5,8 @@
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
-    localPropertiesFile.withInputStream { stream ->
-        localProperties.load(stream)
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
     }
 }
 
@@ -15,7 +15,18 @@
     throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
@@ -26,11 +37,21 @@
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "dev.flutter.microbenchmarks"
         minSdkVersion flutter.minSdkVersion
         targetSdkVersion flutter.targetSdkVersion
-        versionCode 1
-        versionName "0.0.1"
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
     }
 
     buildTypes {
@@ -45,3 +66,7 @@
 flutter {
     source '../..'
 }
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/debug/AndroidManifest.xml b/dev/benchmarks/microbenchmarks/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..2667b07
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.microbenchmarks">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/AndroidManifest.xml b/dev/benchmarks/microbenchmarks/android/app/src/main/AndroidManifest.xml
index fc38010..4e8262b 100644
--- a/dev/benchmarks/microbenchmarks/android/app/src/main/AndroidManifest.xml
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/AndroidManifest.xml
@@ -3,21 +3,34 @@
 found in the LICENSE file. -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.yourcompany.microbenchmarks">
-
-    <uses-permission android:name="android.permission.INTERNET"/>
-
-    <application android:name="io.flutter.app.FlutterApplication" android:label="microbenchmarks" android:icon="@mipmap/ic_launcher">
-        <activity android:name="io.flutter.app.FlutterActivity"
-                  android:launchMode="singleTop"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
+    package="dev.flutter.microbenchmarks">
+   <application
+        android:label="microbenchmarks"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/kotlin/dev/flutter/microbenchmarks/MainActivity.kt b/dev/benchmarks/microbenchmarks/android/app/src/main/kotlin/dev/flutter/microbenchmarks/MainActivity.kt
new file mode 100644
index 0000000..66c13a0
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/kotlin/dev/flutter/microbenchmarks/MainActivity.kt
@@ -0,0 +1,6 @@
+package dev.flutter.microbenchmarks
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable-v21/launch_background.xml b/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..c7238f4
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable/launch_background.xml b/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..32d7798
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/res/values-night/styles.xml b/dev/benchmarks/microbenchmarks/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..455a16f
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/main/res/values/styles.xml b/dev/benchmarks/microbenchmarks/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..c5ad344
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/microbenchmarks/android/app/src/profile/AndroidManifest.xml b/dev/benchmarks/microbenchmarks/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..2667b07
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.microbenchmarks">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/microbenchmarks/android/settings.gradle b/dev/benchmarks/microbenchmarks/android/settings.gradle
index aba084c..d3b6a40 100644
--- a/dev/benchmarks/microbenchmarks/android/settings.gradle
+++ b/dev/benchmarks/microbenchmarks/android/settings.gradle
@@ -2,14 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This file is auto generated.
-// To update all the build.gradle files in the Flutter repo,
-// See dev/tools/bin/generate_gradle_lockfiles.dart.
-
 include ':app'
 
-enableFeaturePreview('ONE_LOCKFILE_PER_PROJECT')
-
 def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
 def properties = new Properties()
 
diff --git a/dev/benchmarks/microbenchmarks/ios/.gitignore b/dev/benchmarks/microbenchmarks/ios/.gitignore
new file mode 100644
index 0000000..7a7f987
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/.gitignore
@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/dev/benchmarks/microbenchmarks/ios/Flutter/AppFrameworkInfo.plist b/dev/benchmarks/microbenchmarks/ios/Flutter/AppFrameworkInfo.plist
index f2872cf..8d4492f 100644
--- a/dev/benchmarks/microbenchmarks/ios/Flutter/AppFrameworkInfo.plist
+++ b/dev/benchmarks/microbenchmarks/ios/Flutter/AppFrameworkInfo.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
   <key>CFBundleDevelopmentRegion</key>
-  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <string>en</string>
   <key>CFBundleExecutable</key>
   <string>App</string>
   <key>CFBundleIdentifier</key>
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/project.pbxproj
index 2d4d1b3..eaf1713 100644
--- a/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/project.pbxproj
+++ b/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/project.pbxproj
@@ -7,10 +7,9 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		7462325D1E83C18C00CC1A5E /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 7462325C1E83C18C00CC1A5E /* AppFrameworkInfo.plist */; };
 		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
-		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
-		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -30,16 +29,15 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
-		7462325C1E83C18C00CC1A5E /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
 		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
-		7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
-		7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
@@ -60,7 +58,7 @@
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				7462325C1E83C18C00CC1A5E /* AppFrameworkInfo.plist */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -74,7 +72,6 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
-				CF3B75C9A7D2FA2A4C99F110 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -89,27 +86,18 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
-				7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */,
-				7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
 				97C147021CF9000F007C117D /* Info.plist */,
-				97C146F11CF9000F007C117D /* Supporting Files */,
 				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
 				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
 			path = Runner;
 			sourceTree = "<group>";
 		};
-		97C146F11CF9000F007C117D /* Supporting Files */ = {
-			isa = PBXGroup;
-			children = (
-				97C146F21CF9000F007C117D /* main.m */,
-			);
-			name = "Supporting Files";
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -144,6 +132,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -171,7 +160,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
-				7462325D1E83C18C00CC1A5E /* AppFrameworkInfo.plist in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
 			);
@@ -215,8 +204,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */,
-				97C146F31CF9000F007C117D /* main.m in Sources */,
+				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -243,7 +231,7 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
-		24101E5E218287A100B38047 /* Profile */ = {
+		249021D3217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
@@ -293,17 +281,23 @@
 			};
 			name = Profile;
 		};
-		24101E5F218287A100B38047 /* Profile */ = {
+		249021D4217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.microbenchmarks;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.microbenchmarks;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Profile;
@@ -408,6 +402,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -418,12 +414,19 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.microbenchmarks;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.microbenchmarks;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -433,12 +436,18 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.microbenchmarks;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.microbenchmarks;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
@@ -451,7 +460,7 @@
 			buildConfigurations = (
 				97C147031CF9000F007C117D /* Debug */,
 				97C147041CF9000F007C117D /* Release */,
-				24101E5E218287A100B38047 /* Profile */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -461,7 +470,7 @@
 			buildConfigurations = (
 				97C147061CF9000F007C117D /* Debug */,
 				97C147071CF9000F007C117D /* Release */,
-				24101E5F218287A100B38047 /* Profile */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 3db53b6..c87d15a 100644
--- a/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/dev/benchmarks/microbenchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -27,8 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
@@ -38,8 +36,8 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
+      <Testables>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -61,8 +59,6 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Profile"
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.h b/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.h
deleted file mode 100644
index 7d5bcd3..0000000
--- a/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.h
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <Flutter/Flutter.h>
-#import <UIKit/UIKit.h>
-
-@interface AppDelegate : FlutterAppDelegate
-
-@end
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.m b/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.m
deleted file mode 100644
index df796d6..0000000
--- a/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.m
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "AppDelegate.h"
-#import "GeneratedPluginRegistrant.h"
-
-@implementation AppDelegate
-
-- (BOOL)application:(UIApplication *)application
-    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-  [GeneratedPluginRegistrant registerWithRegistry:self];
-  // Override point for customization after application launch.
-  return [super application:application didFinishLaunchingWithOptions:launchOptions];
-}
-
-@end
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.swift b/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d815fed
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/AppDelegate.swift
@@ -0,0 +1,17 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
index 87cdfb9..d36b1fa 100644
--- a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -1,110 +1,122 @@
 {
-    "images":[
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"1x",
-            "filename":"Icon-App-29x29@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"2x",
-            "filename":"Icon-App-29x29@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"29x29",
-            "scale":"3x",
-            "filename":"Icon-App-29x29@3x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"1x",
-            "filename":"Icon-App-40x40@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"2x",
-            "filename":"Icon-App-40x40@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"40x40",
-            "scale":"3x",
-            "filename":"Icon-App-40x40@3x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"1x",
-            "filename":"Icon-App-60x60@1x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"2x",
-            "filename":"Icon-App-60x60@2x.png"
-        },
-        {
-            "idiom":"iphone",
-            "size":"60x60",
-            "scale":"3x",
-            "filename":"Icon-App-60x60@3x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"29x29",
-            "scale":"1x",
-            "filename":"Icon-App-29x29@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"29x29",
-            "scale":"2x",
-            "filename":"Icon-App-29x29@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"40x40",
-            "scale":"1x",
-            "filename":"Icon-App-40x40@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"40x40",
-            "scale":"2x",
-            "filename":"Icon-App-40x40@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"1x",
-            "filename":"Icon-App-76x76@1x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"2x",
-            "filename":"Icon-App-76x76@2x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"76x76",
-            "scale":"3x",
-            "filename":"Icon-App-76x76@3x.png"
-        },
-        {
-            "idiom":"ipad",
-            "size":"83.5x83.5",
-            "scale":"2x",
-            "filename":"Icon-App-83.5x83.5@2x.png"
-        }
-    ],
-    "info":{
-        "version":1,
-        "author":"makeappicon"
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
     }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
 }
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
new file mode 100644
index 0000000..dc9ada4
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
new file mode 100644
index 0000000..28c6bf0
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
similarity index 100%
rename from dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png
rename to dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
deleted file mode 100644
index 5d2bad8..0000000
--- a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
+++ /dev/null
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dev/benchmarks/microbenchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard
index ebf48f6..f2e259c 100644
--- a/dev/benchmarks/microbenchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -10,13 +10,20 @@
             <objects>
                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
                     <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
-                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -24,4 +31,7 @@
             <point key="canvasLocation" x="53" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
 </document>
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Info.plist b/dev/benchmarks/microbenchmarks/ios/Runner/Info.plist
index 7207764..1467250 100644
--- a/dev/benchmarks/microbenchmarks/ios/Runner/Info.plist
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Info.plist
@@ -7,7 +7,7 @@
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.yourcompany.microbenchmarks</string>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
@@ -15,11 +15,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(FLUTTER_BUILD_NAME)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Runner-Bridging-Header.h b/dev/benchmarks/microbenchmarks/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..95b7baf
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1,5 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "GeneratedPluginRegistrant.h"
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/main.m b/dev/benchmarks/microbenchmarks/ios/Runner/main.m
deleted file mode 100644
index 7f1fdee..0000000
--- a/dev/benchmarks/microbenchmarks/ios/Runner/main.m
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <UIKit/UIKit.h>
-#import <Flutter/Flutter.h>
-
-int main(int argc, char * argv[]) {
-    @autoreleasepool {
-        return UIApplicationMain(argc, argv, nil,
-                                 NSStringFromClass([FlutterAppDelegate class]));
-    }
-}
diff --git a/dev/benchmarks/microbenchmarks/linux/.gitignore b/dev/benchmarks/microbenchmarks/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/dev/benchmarks/microbenchmarks/linux/CMakeLists.txt b/dev/benchmarks/microbenchmarks/linux/CMakeLists.txt
new file mode 100644
index 0000000..d63fdc8
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "microbenchmarks")
+set(APPLICATION_ID "dev.flutter.microbenchmarks")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/dev/benchmarks/microbenchmarks/linux/flutter/CMakeLists.txt b/dev/benchmarks/microbenchmarks/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.cc b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..e71a16d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.h b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..e0f0a47
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugins.cmake b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/microbenchmarks/linux/main.cc b/dev/benchmarks/microbenchmarks/linux/main.cc
new file mode 100644
index 0000000..281a29e
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/main.cc
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/dev/benchmarks/microbenchmarks/linux/my_application.cc b/dev/benchmarks/microbenchmarks/linux/my_application.cc
new file mode 100644
index 0000000..4803f2d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/my_application.cc
@@ -0,0 +1,108 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "microbenchmarks");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "microbenchmarks");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/dev/benchmarks/microbenchmarks/linux/my_application.h b/dev/benchmarks/microbenchmarks/linux/my_application.h
new file mode 100644
index 0000000..8c66ec4
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/linux/my_application.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/dev/benchmarks/microbenchmarks/macos/.gitignore b/dev/benchmarks/microbenchmarks/macos/.gitignore
new file mode 100644
index 0000000..746adbb
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Debug.xcconfig b/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Debug.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Release.xcconfig b/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Release.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..1eb9d8d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,572 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
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+
+/* Begin XCConfigurationList section */
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..c52205c
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "microbenchmarks.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "microbenchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "microbenchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "microbenchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/AppDelegate.swift b/dev/benchmarks/microbenchmarks/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d080d41
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..a2ec33f
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000..3c4935a
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000..ed4cc16
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000..483be61
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
new file mode 100644
index 0000000..bcbf36d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
new file mode 100644
index 0000000..9c0a652
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000..e71a726
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000..8a31fe2
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Base.lproj/MainMenu.xib b/dev/benchmarks/microbenchmarks/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000..537341a
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Configs/AppInfo.xcconfig b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000..6090409
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = microbenchmarks
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.microbenchmarks
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2021 dev.flutter. All rights reserved.
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Debug.xcconfig b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000..36b0fd9
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Release.xcconfig b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000..dff4f49
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Warnings.xcconfig b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000..42bcbf4
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/DebugProfile.entitlements b/dev/benchmarks/microbenchmarks/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000..dddb8a3
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Info.plist b/dev/benchmarks/microbenchmarks/macos/Runner/Info.plist
new file mode 100644
index 0000000..4789daa
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/MainFlutterWindow.swift b/dev/benchmarks/microbenchmarks/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000..a97a962
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,19 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/dev/benchmarks/microbenchmarks/macos/Runner/Release.entitlements b/dev/benchmarks/microbenchmarks/macos/Runner/Release.entitlements
new file mode 100644
index 0000000..852fa1a
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/microbenchmarks/web/favicon.png b/dev/benchmarks/microbenchmarks/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/favicon.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/web/icons/Icon-192.png b/dev/benchmarks/microbenchmarks/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/icons/Icon-192.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/web/icons/Icon-512.png b/dev/benchmarks/microbenchmarks/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/icons/Icon-512.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-192.png b/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-192.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-512.png b/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/icons/Icon-maskable-512.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/web/index.html b/dev/benchmarks/microbenchmarks/web/index.html
new file mode 100644
index 0000000..c2a1314
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/index.html
@@ -0,0 +1,109 @@
+<!DOCTYPE HTML>
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="microbenchmarks">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>microbenchmarks</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/dev/benchmarks/microbenchmarks/web/manifest.json b/dev/benchmarks/microbenchmarks/web/manifest.json
new file mode 100644
index 0000000..b621afc
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "microbenchmarks",
+    "short_name": "microbenchmarks",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/.gitignore b/dev/benchmarks/microbenchmarks/windows/.gitignore
new file mode 100644
index 0000000..d492d0d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/.gitignore
@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
diff --git a/dev/benchmarks/microbenchmarks/windows/CMakeLists.txt b/dev/benchmarks/microbenchmarks/windows/CMakeLists.txt
new file mode 100644
index 0000000..c6837bb
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/CMakeLists.txt
@@ -0,0 +1,95 @@
+cmake_minimum_required(VERSION 3.14)
+project(microbenchmarks LANGUAGES CXX)
+
+set(BINARY_NAME "microbenchmarks")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Configure build options.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build
+add_subdirectory("runner")
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)
diff --git a/dev/benchmarks/microbenchmarks/windows/flutter/CMakeLists.txt b/dev/benchmarks/microbenchmarks/windows/flutter/CMakeLists.txt
new file mode 100644
index 0000000..b2e4bd8
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/flutter/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
diff --git a/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.cc b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..8b6d468
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.h b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..dc139d8
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugins.cmake b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..4d10c25
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/CMakeLists.txt b/dev/benchmarks/microbenchmarks/windows/runner/CMakeLists.txt
new file mode 100644
index 0000000..de2d891
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+apply_standard_settings(${BINARY_NAME})
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+add_dependencies(${BINARY_NAME} flutter_assemble)
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/Runner.rc b/dev/benchmarks/microbenchmarks/windows/runner/Runner.rc
new file mode 100644
index 0000000..17ef424
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/Runner.rc
@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#ifdef FLUTTER_BUILD_NUMBER
+#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#else
+#define VERSION_AS_NUMBER 1,0,0
+#endif
+
+#ifdef FLUTTER_BUILD_NAME
+#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.flutter" "\0"
+            VALUE "FileDescription", "A new Flutter project." "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "microbenchmarks" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2021 dev.flutter. All rights reserved." "\0"
+            VALUE "OriginalFilename", "microbenchmarks.exe" "\0"
+            VALUE "ProductName", "microbenchmarks" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.cpp b/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.cpp
new file mode 100644
index 0000000..9cbd310
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.cpp
@@ -0,0 +1,65 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.h b/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.h
new file mode 100644
index 0000000..bbc5836
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/flutter_window.h
@@ -0,0 +1,37 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/main.cpp b/dev/benchmarks/microbenchmarks/windows/runner/main.cpp
new file mode 100644
index 0000000..197e0d0
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/main.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.CreateAndShow(L"microbenchmarks", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/resource.h b/dev/benchmarks/microbenchmarks/windows/runner/resource.h
new file mode 100644
index 0000000..c245ff1
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/resource.h
@@ -0,0 +1,20 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/resources/app_icon.ico b/dev/benchmarks/microbenchmarks/windows/runner/resources/app_icon.ico
new file mode 100644
index 0000000..2e4cc82
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/resources/app_icon.ico
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/runner.exe.manifest b/dev/benchmarks/microbenchmarks/windows/runner/runner.exe.manifest
new file mode 100644
index 0000000..c977c4a
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/runner.exe.manifest
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/utils.cpp b/dev/benchmarks/microbenchmarks/windows/runner/utils.cpp
new file mode 100644
index 0000000..077d1ac
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/utils.cpp
@@ -0,0 +1,68 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr);
+  if (target_length == 0) {
+    return std::string();
+  }
+  std::string utf8_string;
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, utf8_string.data(),
+      target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/utils.h b/dev/benchmarks/microbenchmarks/windows/runner/utils.h
new file mode 100644
index 0000000..54414c9
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/utils.h
@@ -0,0 +1,23 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/win32_window.cpp b/dev/benchmarks/microbenchmarks/windows/runner/win32_window.cpp
new file mode 100644
index 0000000..20c47ea
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/win32_window.cpp
@@ -0,0 +1,249 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "win32_window.h"
+
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+    FreeLibrary(user32_module);
+  }
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::CreateAndShow(const std::wstring& title,
+                                const Point& origin,
+                                const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  return OnCreate();
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
diff --git a/dev/benchmarks/microbenchmarks/windows/runner/win32_window.h b/dev/benchmarks/microbenchmarks/windows/runner/win32_window.h
new file mode 100644
index 0000000..1dab177
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/windows/runner/win32_window.h
@@ -0,0 +1,102 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates and shows a win32 window with |title| and position and size using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size to will treat the width height passed in to this function
+  // as logical pixels and scale to appropriate for the default monitor. Returns
+  // true if the window was created successfully.
+  bool CreateAndShow(const std::wstring& title,
+                     const Point& origin,
+                     const Size& size);
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responsponds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/.gitignore b/dev/benchmarks/platform_channels_benchmarks/android/.gitignore
new file mode 100644
index 0000000..6f56801
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/build.gradle b/dev/benchmarks/platform_channels_benchmarks/android/app/build.gradle
new file mode 100644
index 0000000..c9d1223
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/build.gradle
@@ -0,0 +1,72 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 30
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "dev.flutter.platform_channels_benchmarks"
+        minSdkVersion 16
+        targetSdkVersion 30
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/debug/AndroidManifest.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..67855e0
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_channels_benchmarks">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/AndroidManifest.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..9f2e4a7
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,36 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_channels_benchmarks">
+   <application
+        android:label="platform_channels_benchmarks"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/com/example/platform_channels_benchmarks/MainActivity.kt b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/com/example/platform_channels_benchmarks/MainActivity.kt
deleted file mode 100644
index b30bf2c..0000000
--- a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/com/example/platform_channels_benchmarks/MainActivity.kt
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package com.example.platform_channels_benchmarks
-
-import io.flutter.embedding.android.FlutterActivity
-import io.flutter.embedding.engine.FlutterEngine
-import io.flutter.plugin.common.BasicMessageChannel
-import io.flutter.plugin.common.BinaryCodec
-import io.flutter.plugin.common.StandardMessageCodec
-import java.nio.ByteBuffer
-
-class MainActivity: FlutterActivity() {
-    // We allow for the caching of a response in the binary channel case since
-    // the reply requires a direct buffer, but the input is not a direct buffer.
-    // We can't directly send the input back to the reply currently.
-    private var byteBufferCache : ByteBuffer? = null
-    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
-        val reset = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.reset", StandardMessageCodec.INSTANCE)
-        reset.setMessageHandler { message, reply -> run {
-            byteBufferCache = null
-        } }
-        val basicStandard = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.basic.standard", StandardMessageCodec.INSTANCE)
-        basicStandard.setMessageHandler { message, reply -> reply.reply(message) }
-        val basicBinary = BasicMessageChannel(flutterEngine.dartExecutor, "dev.flutter.echo.basic.binary", BinaryCodec.INSTANCE_DIRECT)
-        basicBinary.setMessageHandler { message, reply -> run {
-            if (byteBufferCache == null) {
-                byteBufferCache = ByteBuffer.allocateDirect(message!!.capacity())
-                byteBufferCache!!.put(message)
-            }
-            reply.reply(byteBufferCache)
-        } }
-        super.configureFlutterEngine(flutterEngine)
-    }
-}
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/dev/flutter/platform_channels_benchmarks/MainActivity.kt b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/dev/flutter/platform_channels_benchmarks/MainActivity.kt
new file mode 100644
index 0000000..58bb674
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/kotlin/dev/flutter/platform_channels_benchmarks/MainActivity.kt
@@ -0,0 +1,6 @@
+package dev.flutter.platform_channels_benchmarks
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable-v21/launch_background.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..c7238f4
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable/launch_background.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..32d7798
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..db77bb4
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..17987b7
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..09d4391
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d5f1c8d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4d6372e
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values-night/styles.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..455a16f
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values/styles.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..c5ad344
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/app/src/profile/AndroidManifest.xml b/dev/benchmarks/platform_channels_benchmarks/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..67855e0
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_channels_benchmarks">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/build.gradle b/dev/benchmarks/platform_channels_benchmarks/android/build.gradle
new file mode 100644
index 0000000..f5995f3
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/build.gradle
@@ -0,0 +1,50 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file is auto generated.
+// To update all the build.gradle files in the Flutter repo,
+// See dev/tools/bin/generate_gradle_lockfiles.dart.
+
+buildscript {
+    ext.kotlin_version = '1.4.32'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.0.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+
+    configurations.classpath {
+        resolutionStrategy.activateDependencyLocking()
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = '../build'
+
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+    project.evaluationDependsOn(':app')
+
+    dependencyLocking {
+        ignoredDependencies.add('io.flutter:*')
+        lockFile = file("${rootProject.projectDir}/project-${project.name}.lockfile")
+        if (!project.hasProperty('local-engine-repo')) {
+          lockAllConfigurations()
+        }
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/buildscript-gradle.lockfile b/dev/benchmarks/platform_channels_benchmarks/android/buildscript-gradle.lockfile
new file mode 100644
index 0000000..f992a06
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/buildscript-gradle.lockfile
@@ -0,0 +1,118 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+androidx.databinding:databinding-common:4.1.3=classpath
+androidx.databinding:databinding-compiler-common:4.1.3=classpath
+com.android.databinding:baseLibrary:4.1.3=classpath
+com.android.tools.analytics-library:crash:27.1.3=classpath
+com.android.tools.analytics-library:protos:27.1.3=classpath
+com.android.tools.analytics-library:shared:27.1.3=classpath
+com.android.tools.analytics-library:tracker:27.1.3=classpath
+com.android.tools.build.jetifier:jetifier-core:1.0.0-beta09=classpath
+com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09=classpath
+com.android.tools.build:aapt2-proto:4.1.3-6503028=classpath
+com.android.tools.build:aaptcompiler:4.1.3=classpath
+com.android.tools.build:apksig:4.1.3=classpath
+com.android.tools.build:apkzlib:4.1.3=classpath
+com.android.tools.build:builder-model:4.1.3=classpath
+com.android.tools.build:builder-test-api:4.1.3=classpath
+com.android.tools.build:builder:4.1.3=classpath
+com.android.tools.build:bundletool:0.14.0=classpath
+com.android.tools.build:gradle-api:4.1.3=classpath
+com.android.tools.build:gradle:4.1.3=classpath
+com.android.tools.build:manifest-merger:27.1.3=classpath
+com.android.tools.build:transform-api:2.0.0-deprecated-use-gradle-api=classpath
+com.android.tools.ddms:ddmlib:27.1.3=classpath
+com.android.tools.layoutlib:layoutlib-api:27.1.3=classpath
+com.android.tools.lint:lint-gradle-api:27.1.3=classpath
+com.android.tools.lint:lint-model:27.1.3=classpath
+com.android.tools:annotations:27.1.3=classpath
+com.android.tools:common:27.1.3=classpath
+com.android.tools:dvlib:27.1.3=classpath
+com.android.tools:repository:27.1.3=classpath
+com.android.tools:sdk-common:27.1.3=classpath
+com.android.tools:sdklib:27.1.3=classpath
+com.android:signflinger:4.1.3=classpath
+com.android:zipflinger:4.1.3=classpath
+com.github.gundy:semver4j:0.16.4=classpath
+com.google.auto.value:auto-value-annotations:1.6.2=classpath
+com.google.code.findbugs:jsr305:3.0.2=classpath
+com.google.code.gson:gson:2.8.6=classpath
+com.google.crypto.tink:tink:1.3.0-rc2=classpath
+com.google.errorprone:error_prone_annotations:2.3.2=classpath
+com.google.flatbuffers:flatbuffers-java:1.12.0=classpath
+com.google.guava:failureaccess:1.0.1=classpath
+com.google.guava:guava:28.1-jre=classpath
+com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava=classpath
+com.google.j2objc:j2objc-annotations:1.3=classpath
+com.google.jimfs:jimfs:1.1=classpath
+com.google.protobuf:protobuf-java-util:3.10.0=classpath
+com.google.protobuf:protobuf-java:3.10.0=classpath
+com.google.test.platform:core-proto:0.0.2-dev=classpath
+com.googlecode.json-simple:json-simple:1.1=classpath
+com.googlecode.juniversalchardet:juniversalchardet:1.0.3=classpath
+com.squareup:javapoet:1.10.0=classpath
+com.squareup:javawriter:2.5.0=classpath
+com.sun.activation:javax.activation:1.2.0=classpath
+com.sun.istack:istack-commons-runtime:3.0.7=classpath
+com.sun.xml.fastinfoset:FastInfoset:1.2.15=classpath
+commons-codec:commons-codec:1.10=classpath
+commons-io:commons-io:2.4=classpath
+commons-logging:commons-logging:1.2=classpath
+de.undercouch:gradle-download-task:4.0.2=classpath
+it.unimi.dsi:fastutil:7.2.0=classpath
+javax.activation:javax.activation-api:1.2.0=classpath
+javax.inject:javax.inject:1=classpath
+javax.xml.bind:jaxb-api:2.3.1=classpath
+net.sf.jopt-simple:jopt-simple:4.9=classpath
+net.sf.kxml:kxml2:2.3.0=classpath
+net.sf.proguard:proguard-base:6.0.3=classpath
+net.sf.proguard:proguard-gradle:6.0.3=classpath
+org.antlr:antlr4-runtime:4.5.2-1=classpath
+org.antlr:antlr4:4.5.3=classpath
+org.apache.commons:commons-compress:1.12=classpath
+org.apache.httpcomponents:httpclient:4.5.6=classpath
+org.apache.httpcomponents:httpcore:4.4.10=classpath
+org.apache.httpcomponents:httpmime:4.5.6=classpath
+org.bouncycastle:bcpkix-jdk15on:1.56=classpath
+org.bouncycastle:bcprov-jdk15on:1.56=classpath
+org.checkerframework:checker-qual:2.8.1=classpath
+org.codehaus.mojo:animal-sniffer-annotations:1.18=classpath
+org.glassfish.jaxb:jaxb-runtime:2.3.1=classpath
+org.glassfish.jaxb:txw2:2.3.1=classpath
+org.jdom:jdom2:2.0.6=classpath
+org.jetbrains.intellij.deps:trove4j:1.0.20181211=classpath
+org.jetbrains.kotlin:kotlin-android-extensions:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-annotation-processing-gradle:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-build-common:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-compiler-runner:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-daemon-client:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-gradle-plugin-api:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-gradle-plugin-model:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-reflect:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-scripting-common:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-scripting-compiler-embeddable:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-scripting-compiler-impl-embeddable:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-scripting-jvm:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72=classpath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72=classpath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-util-io:1.4.32=classpath
+org.jetbrains.kotlin:kotlin-util-klib:1.4.32=classpath
+org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.8=classpath
+org.jetbrains.trove4j:trove4j:20160824=classpath
+org.jetbrains:annotations:13.0=classpath
+org.json:json:20180813=classpath
+org.jvnet.staxex:stax-ex:1.8=classpath
+org.ow2.asm:asm-analysis:7.0=classpath
+org.ow2.asm:asm-commons:7.0=classpath
+org.ow2.asm:asm-tree:7.0=classpath
+org.ow2.asm:asm-util:7.0=classpath
+org.ow2.asm:asm:7.0=classpath
+org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1=classpath
+empty=
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/gradle.properties b/dev/benchmarks/platform_channels_benchmarks/android/gradle.properties
new file mode 100644
index 0000000..94adc3a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/gradle.properties
@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/gradle/wrapper/gradle-wrapper.properties b/dev/benchmarks/platform_channels_benchmarks/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..b8793d3
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-all.zip
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/project-app.lockfile b/dev/benchmarks/platform_channels_benchmarks/android/project-app.lockfile
new file mode 100644
index 0000000..a11cc92
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/project-app.lockfile
@@ -0,0 +1,112 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+androidx.activity:activity:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.annotation:annotation:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-common:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-runtime:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.collection:collection:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.core:core:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.customview:customview:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.fragment:fragment:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common-java8:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata-core:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-runtime:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-viewmodel:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.loader:loader:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.savedstate:savedstate:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.versionedparcelable:versionedparcelable:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.viewpager:viewpager:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+com.android.tools.analytics-library:protos:27.1.3=lintClassPath
+com.android.tools.analytics-library:shared:27.1.3=lintClassPath
+com.android.tools.analytics-library:tracker:27.1.3=lintClassPath
+com.android.tools.build:aapt2-proto:4.1.0-alpha01-6193524=lintClassPath
+com.android.tools.build:aapt2:4.1.3-6503028=_internal_aapt2_binary
+com.android.tools.build:apksig:4.1.3=lintClassPath
+com.android.tools.build:apkzlib:4.1.3=lintClassPath
+com.android.tools.build:builder-model:4.1.3=lintClassPath
+com.android.tools.build:builder-test-api:4.1.3=lintClassPath
+com.android.tools.build:builder:4.1.3=lintClassPath
+com.android.tools.build:gradle-api:4.1.3=lintClassPath
+com.android.tools.build:manifest-merger:27.1.3=lintClassPath
+com.android.tools.ddms:ddmlib:27.1.3=lintClassPath
+com.android.tools.external.com-intellij:intellij-core:27.1.3=lintClassPath
+com.android.tools.external.com-intellij:kotlin-compiler:27.1.3=lintClassPath
+com.android.tools.external.org-jetbrains:uast:27.1.3=lintClassPath
+com.android.tools.layoutlib:layoutlib-api:27.1.3=lintClassPath
+com.android.tools.lint:lint-api:27.1.3=lintClassPath
+com.android.tools.lint:lint-checks:27.1.3=lintClassPath
+com.android.tools.lint:lint-gradle-api:27.1.3=lintClassPath
+com.android.tools.lint:lint-gradle:27.1.3=lintClassPath
+com.android.tools.lint:lint-model:27.1.3=lintClassPath
+com.android.tools.lint:lint:27.1.3=lintClassPath
+com.android.tools:annotations:27.1.3=lintClassPath
+com.android.tools:common:27.1.3=lintClassPath
+com.android.tools:dvlib:27.1.3=lintClassPath
+com.android.tools:repository:27.1.3=lintClassPath
+com.android.tools:sdk-common:27.1.3=lintClassPath
+com.android.tools:sdklib:27.1.3=lintClassPath
+com.android:signflinger:4.1.3=lintClassPath
+com.android:zipflinger:4.1.3=lintClassPath
+com.google.code.findbugs:jsr305:3.0.2=lintClassPath
+com.google.code.gson:gson:2.8.5=lintClassPath
+com.google.errorprone:error_prone_annotations:2.3.2=lintClassPath
+com.google.guava:failureaccess:1.0.1=lintClassPath
+com.google.guava:guava:28.1-jre=lintClassPath
+com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava=lintClassPath
+com.google.j2objc:j2objc-annotations:1.3=lintClassPath
+com.google.jimfs:jimfs:1.1=lintClassPath
+com.google.protobuf:protobuf-java:3.10.0=lintClassPath
+com.googlecode.json-simple:json-simple:1.1=lintClassPath
+com.squareup:javawriter:2.5.0=lintClassPath
+com.sun.activation:javax.activation:1.2.0=lintClassPath
+com.sun.istack:istack-commons-runtime:3.0.7=lintClassPath
+com.sun.xml.fastinfoset:FastInfoset:1.2.15=lintClassPath
+commons-codec:commons-codec:1.10=lintClassPath
+commons-logging:commons-logging:1.2=lintClassPath
+it.unimi.dsi:fastutil:7.2.0=lintClassPath
+javax.activation:javax.activation-api:1.2.0=lintClassPath
+javax.inject:javax.inject:1=lintClassPath
+javax.xml.bind:jaxb-api:2.3.1=lintClassPath
+net.sf.jopt-simple:jopt-simple:4.9=lintClassPath
+net.sf.kxml:kxml2:2.3.0=lintClassPath
+org.apache.commons:commons-compress:1.12=lintClassPath
+org.apache.httpcomponents:httpclient:4.5.6=lintClassPath
+org.apache.httpcomponents:httpcore:4.4.10=lintClassPath
+org.apache.httpcomponents:httpmime:4.5.6=lintClassPath
+org.bouncycastle:bcpkix-jdk15on:1.56=lintClassPath
+org.bouncycastle:bcprov-jdk15on:1.56=lintClassPath
+org.checkerframework:checker-qual:2.8.1=lintClassPath
+org.codehaus.groovy:groovy-all:2.4.15=lintClassPath
+org.codehaus.mojo:animal-sniffer-annotations:1.18=lintClassPath
+org.glassfish.jaxb:jaxb-runtime:2.3.1=lintClassPath
+org.glassfish.jaxb:txw2:2.3.1=lintClassPath
+org.jacoco:org.jacoco.agent:0.8.3=androidJacocoAnt
+org.jacoco:org.jacoco.ant:0.8.3=androidJacocoAnt
+org.jacoco:org.jacoco.core:0.8.3=androidJacocoAnt
+org.jacoco:org.jacoco.report:0.8.3=androidJacocoAnt
+org.jetbrains.intellij.deps:trove4j:1.0.20181211=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-klib-commonizer-embeddable:1.4.32=kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-reflect:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-reflect:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+org.jetbrains.trove4j:trove4j:20160824=lintClassPath
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+org.jvnet.staxex:stax-ex:1.8=lintClassPath
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+org.ow2.asm:asm-tree:7.0=androidJacocoAnt,lintClassPath
+org.ow2.asm:asm-util:7.0=lintClassPath
+org.ow2.asm:asm:7.0=androidJacocoAnt,lintClassPath
+empty=androidApis,androidJdkImage,androidTestApiDependenciesMetadata,androidTestCompileOnlyDependenciesMetadata,androidTestDebugApiDependenciesMetadata,androidTestDebugCompileOnlyDependenciesMetadata,androidTestDebugImplementationDependenciesMetadata,androidTestDebugRuntimeOnlyDependenciesMetadata,androidTestImplementationDependenciesMetadata,androidTestProfileApiDependenciesMetadata,androidTestProfileCompileOnlyDependenciesMetadata,androidTestProfileImplementationDependenciesMetadata,androidTestProfileRuntimeOnlyDependenciesMetadata,androidTestReleaseApiDependenciesMetadata,androidTestReleaseCompileOnlyDependenciesMetadata,androidTestReleaseImplementationDependenciesMetadata,androidTestReleaseRuntimeOnlyDependenciesMetadata,androidTestRuntimeOnlyDependenciesMetadata,androidTestUtil,apiDependenciesMetadata,compile,compileOnlyDependenciesMetadata,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestApiDependenciesMetadata,debugAndroidTestCompile,debugAndroidTestCompileOnlyDependenciesMetadata,debugAndroidTestImplementationDependenciesMetadata,debugAndroidTestRuntime,debugAndroidTestRuntimeClasspath,debugAndroidTestRuntimeOnlyDependenciesMetadata,debugAnnotationProcessorClasspath,debugCompile,debugCompileOnly,debugCompileOnlyDependenciesMetadata,debugReverseMetadataValues,debugRuntime,debugRuntimeOnlyDependenciesMetadata,debugUnitTestAnnotationProcessorClasspath,debugUnitTestApiDependenciesMetadata,debugUnitTestCompile,debugUnitTestCompileOnlyDependenciesMetadata,debugUnitTestImplementationDependenciesMetadata,debugUnitTestRuntime,debugUnitTestRuntimeOnlyDependenciesMetadata,debugWearBundling,kotlinCompilerPluginClasspath,kotlinNativeCompilerPluginClasspath,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileCompile,profileCompileOnly,profileCompileOnlyDependenciesMetadata,profileReverseMetadataValues,profileRuntime,profileRuntimeOnlyDependenciesMetadata,profileUnitTestAnnotationProcessorClasspath,profileUnitTestApiDependenciesMetadata,profileUnitTestCompile,profileUnitTestCompileOnlyDependenciesMetadata,profileUnitTestImplementationDependenciesMetadata,profileUnitTestRuntime,profileUnitTestRuntimeOnlyDependenciesMetadata,profileWearBundling,releaseAnnotationProcessorClasspath,releaseCompile,releaseCompileOnly,releaseCompileOnlyDependenciesMetadata,releaseReverseMetadataValues,releaseRuntime,releaseRuntimeOnlyDependenciesMetadata,releaseUnitTestAnnotationProcessorClasspath,releaseUnitTestApiDependenciesMetadata,releaseUnitTestCompile,releaseUnitTestCompileOnlyDependenciesMetadata,releaseUnitTestImplementationDependenciesMetadata,releaseUnitTestRuntime,releaseUnitTestRuntimeOnlyDependenciesMetadata,releaseWearBundling,runtimeOnlyDependenciesMetadata,testApiDependenciesMetadata,testCompile,testCompileOnlyDependenciesMetadata,testDebugApiDependenciesMetadata,testDebugCompileOnlyDependenciesMetadata,testDebugImplementationDependenciesMetadata,testDebugRuntimeOnlyDependenciesMetadata,testImplementationDependenciesMetadata,testProfileApiDependenciesMetadata,testProfileCompileOnlyDependenciesMetadata,testProfileImplementationDependenciesMetadata,testProfileRuntimeOnlyDependenciesMetadata,testReleaseApiDependenciesMetadata,testReleaseCompileOnlyDependenciesMetadata,testReleaseImplementationDependenciesMetadata,testReleaseRuntimeOnlyDependenciesMetadata,testRuntimeOnlyDependenciesMetadata
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/settings.gradle b/dev/benchmarks/platform_channels_benchmarks/android/settings.gradle
new file mode 100644
index 0000000..03ae72d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/settings.gradle
@@ -0,0 +1,21 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file is auto generated.
+// To update all the settings.gradle files in the Flutter repo,
+// See dev/tools/bin/generate_gradle_lockfiles.dart.
+
+include ':app'
+
+enableFeaturePreview('ONE_LOCKFILE_PER_PROJECT')
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/.gitignore b/dev/benchmarks/platform_channels_benchmarks/ios/.gitignore
new file mode 100644
index 0000000..7a7f987
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/.gitignore
@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/AppFrameworkInfo.plist b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/AppFrameworkInfo.plist
new file mode 100644
index 0000000..8d4492f
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/AppFrameworkInfo.plist
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>9.0</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Debug.xcconfig b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Debug.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Debug.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Release.xcconfig b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Release.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Flutter/Release.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..cf8ef6d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,481 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
+		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
+		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
+		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
+		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				97C146EE1CF9000F007C117D /* Runner.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		97C146F01CF9000F007C117D /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				97C146FA1CF9000F007C117D /* Main.storyboard */,
+				97C146FD1CF9000F007C117D /* Assets.xcassets */,
+				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
+				97C147021CF9000F007C117D /* Info.plist */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		97C146ED1CF9000F007C117D /* Runner */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
+				9740EEB61CF901F6004384FC /* Run Script */,
+				97C146EA1CF9000F007C117D /* Sources */,
+				97C146EB1CF9000F007C117D /* Frameworks */,
+				97C146EC1CF9000F007C117D /* Resources */,
+				9705A1C41CF9048500538489 /* Embed Frameworks */,
+				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Runner;
+			productName = Runner;
+			productReference = 97C146EE1CF9000F007C117D /* Runner.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		97C146E61CF9000F007C117D /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 1300;
+				ORGANIZATIONNAME = "";
+				TargetAttributes = {
+					97C146ED1CF9000F007C117D = {
+						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1100;
+					};
+				};
+			};
+			buildConfigurationList = 97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 97C146E51CF9000F007C117D;
+			productRefGroup = 97C146EF1CF9000F007C117D /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				97C146ED1CF9000F007C117D /* Runner */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		97C146EC1CF9000F007C117D /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
+				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
+				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
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+/* End PBXSourcesBuildPhase section */
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+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
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+			name = Profile;
+		};
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+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformChannelsBenchmarks;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
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+			isa = XCBuildConfiguration;
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+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
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+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
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+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
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+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
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+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+				MTL_ENABLE_DEBUG_INFO = YES;
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+		};
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+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
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+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		97C147061CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformChannelsBenchmarks;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformChannelsBenchmarks;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..919434a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 0000000..f9b0d7c
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..c87d15a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 0000000..f9b0d7c
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/AppDelegate.swift b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/AppDelegate.swift
index 0e3b462..d815fed 100644
--- a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/AppDelegate.swift
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/AppDelegate.swift
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import Flutter
 import UIKit
+import Flutter
 
 @UIApplicationMain
 @objc class AppDelegate: FlutterAppDelegate {
@@ -12,26 +12,6 @@
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
-
-    let registrar = self.registrar(forPlugin: "Echo")!
-    let reset = FlutterBasicMessageChannel(
-      name: "dev.flutter.echo.reset", binaryMessenger: registrar.messenger())
-    reset.setMessageHandler { (input, reply) in
-      // noop
-    }
-    let basicStandard = FlutterBasicMessageChannel(
-      name: "dev.flutter.echo.basic.standard", binaryMessenger: registrar.messenger(),
-      codec: FlutterStandardMessageCodec.sharedInstance())
-    basicStandard.setMessageHandler { (input, reply) in
-      reply(input)
-    }
-    let basicBinary = FlutterBasicMessageChannel(
-      name: "dev.flutter.echo.basic.binary", binaryMessenger: registrar.messenger(),
-      codec: FlutterBinaryCodec())
-    basicBinary.setMessageHandler { (input, reply) in
-      reply(input)
-    }
-
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 }
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d36b1fa
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
new file mode 100644
index 0000000..dc9ada4
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
new file mode 100644
index 0000000..28c6bf0
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
Binary files differ
diff --git a/dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
similarity index 100%
copy from dev/benchmarks/microbenchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png
copy to dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
new file mode 100644
index 0000000..4cde121
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
new file mode 100644
index 0000000..d0ef06e
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
new file mode 100644
index 0000000..dcdc230
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
new file mode 100644
index 0000000..c8f9ed8
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
new file mode 100644
index 0000000..75b2d16
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
new file mode 100644
index 0000000..c4df70d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
new file mode 100644
index 0000000..6a84f41
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
new file mode 100644
index 0000000..d0e1f58
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..f2e259c
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/Main.storyboard b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..f3c2851
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Base.lproj/Main.storyboard
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Info.plist b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Info.plist
new file mode 100644
index 0000000..4ecdf37
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Info.plist
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>platform_channels_benchmarks</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Runner-Bridging-Header.h b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..95b7baf
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1,5 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "GeneratedPluginRegistrant.h"
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/.gitignore b/dev/benchmarks/platform_channels_benchmarks/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/CMakeLists.txt b/dev/benchmarks/platform_channels_benchmarks/linux/CMakeLists.txt
new file mode 100644
index 0000000..f7b6591
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "platform_channels_benchmarks")
+set(APPLICATION_ID "dev.flutter.platform_channels_benchmarks")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/flutter/CMakeLists.txt b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..e71a16d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..e0f0a47
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugins.cmake b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/main.cc b/dev/benchmarks/platform_channels_benchmarks/linux/main.cc
new file mode 100644
index 0000000..281a29e
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/main.cc
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/my_application.cc b/dev/benchmarks/platform_channels_benchmarks/linux/my_application.cc
new file mode 100644
index 0000000..37cc076
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/my_application.cc
@@ -0,0 +1,108 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "platform_channels_benchmarks");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "platform_channels_benchmarks");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/linux/my_application.h b/dev/benchmarks/platform_channels_benchmarks/linux/my_application.h
new file mode 100644
index 0000000..8c66ec4
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/linux/my_application.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/.gitignore b/dev/benchmarks/platform_channels_benchmarks/macos/.gitignore
new file mode 100644
index 0000000..746adbb
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Debug.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Debug.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Release.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Release.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..0b2e115
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,572 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
+		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
+		33CC10ED2044A3C60003C045 /* platform_channels_benchmarks.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "platform_channels_benchmarks.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
+		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		33CC10F72044A3C60003C045 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = Runner/Info.plist; sourceTree = "<group>"; };
+		33CC11122044BFA00003C045 /* MainFlutterWindow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainFlutterWindow.swift; sourceTree = "<group>"; };
+		33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Debug.xcconfig"; sourceTree = "<group>"; };
+		33CEB47422A05771004F2AC0 /* Flutter-Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Release.xcconfig"; sourceTree = "<group>"; };
+		33CEB47722A0578A004F2AC0 /* Flutter-Generated.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = "Flutter-Generated.xcconfig"; path = "ephemeral/Flutter-Generated.xcconfig"; sourceTree = "<group>"; };
+		33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
+		33E51914231749380026EE4D /* Release.entitlements */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.entitlements; path = Release.entitlements; sourceTree = "<group>"; };
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diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..071ed5c
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "platform_channels_benchmarks.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_channels_benchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_channels_benchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_channels_benchmarks.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/AppDelegate.swift b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d080d41
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..a2ec33f
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000..3c4935a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000..ed4cc16
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000..483be61
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
new file mode 100644
index 0000000..bcbf36d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
new file mode 100644
index 0000000..9c0a652
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000..e71a726
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000..8a31fe2
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Base.lproj/MainMenu.xib b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000..537341a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/AppInfo.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000..fb51e3a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = platform_channels_benchmarks
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformChannelsBenchmarks
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2021 dev.flutter. All rights reserved.
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Debug.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000..36b0fd9
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Release.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000..dff4f49
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Warnings.xcconfig b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000..42bcbf4
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/DebugProfile.entitlements b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000..dddb8a3
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Info.plist b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Info.plist
new file mode 100644
index 0000000..4789daa
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/MainFlutterWindow.swift b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000..a97a962
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,19 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Release.entitlements b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Release.entitlements
new file mode 100644
index 0000000..852fa1a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/favicon.png b/dev/benchmarks/platform_channels_benchmarks/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/favicon.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-192.png b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-512.png b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-192.png b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-512.png b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/icons/Icon-maskable-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/index.html b/dev/benchmarks/platform_channels_benchmarks/web/index.html
new file mode 100644
index 0000000..2d91190
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/index.html
@@ -0,0 +1,109 @@
+<!DOCTYPE HTML>
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="platform_channels_benchmarks">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>platform_channels_benchmarks</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/dev/benchmarks/platform_channels_benchmarks/web/manifest.json b/dev/benchmarks/platform_channels_benchmarks/web/manifest.json
new file mode 100644
index 0000000..8e48446
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "platform_channels_benchmarks",
+    "short_name": "platform_channels_benchmarks",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/.gitignore b/dev/benchmarks/platform_channels_benchmarks/windows/.gitignore
new file mode 100644
index 0000000..d492d0d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/.gitignore
@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/CMakeLists.txt b/dev/benchmarks/platform_channels_benchmarks/windows/CMakeLists.txt
new file mode 100644
index 0000000..3018426
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/CMakeLists.txt
@@ -0,0 +1,95 @@
+cmake_minimum_required(VERSION 3.14)
+project(platform_channels_benchmarks LANGUAGES CXX)
+
+set(BINARY_NAME "platform_channels_benchmarks")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Configure build options.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build
+add_subdirectory("runner")
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/flutter/CMakeLists.txt b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/CMakeLists.txt
new file mode 100644
index 0000000..b2e4bd8
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..8b6d468
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..dc139d8
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugins.cmake b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..4d10c25
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/CMakeLists.txt b/dev/benchmarks/platform_channels_benchmarks/windows/runner/CMakeLists.txt
new file mode 100644
index 0000000..de2d891
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+apply_standard_settings(${BINARY_NAME})
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+add_dependencies(${BINARY_NAME} flutter_assemble)
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/Runner.rc b/dev/benchmarks/platform_channels_benchmarks/windows/runner/Runner.rc
new file mode 100644
index 0000000..e742a84
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/Runner.rc
@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#ifdef FLUTTER_BUILD_NUMBER
+#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#else
+#define VERSION_AS_NUMBER 1,0,0
+#endif
+
+#ifdef FLUTTER_BUILD_NAME
+#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.flutter" "\0"
+            VALUE "FileDescription", "A new Flutter project." "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "platform_channels_benchmarks" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2021 dev.flutter. All rights reserved." "\0"
+            VALUE "OriginalFilename", "platform_channels_benchmarks.exe" "\0"
+            VALUE "ProductName", "platform_channels_benchmarks" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.cpp b/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.cpp
new file mode 100644
index 0000000..9cbd310
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.cpp
@@ -0,0 +1,65 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.h b/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.h
new file mode 100644
index 0000000..bbc5836
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/flutter_window.h
@@ -0,0 +1,37 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/main.cpp b/dev/benchmarks/platform_channels_benchmarks/windows/runner/main.cpp
new file mode 100644
index 0000000..202b03a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/main.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.CreateAndShow(L"platform_channels_benchmarks", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/resource.h b/dev/benchmarks/platform_channels_benchmarks/windows/runner/resource.h
new file mode 100644
index 0000000..c245ff1
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/resource.h
@@ -0,0 +1,20 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/resources/app_icon.ico b/dev/benchmarks/platform_channels_benchmarks/windows/runner/resources/app_icon.ico
new file mode 100644
index 0000000..2e4cc82
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/resources/app_icon.ico
Binary files differ
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/runner.exe.manifest b/dev/benchmarks/platform_channels_benchmarks/windows/runner/runner.exe.manifest
new file mode 100644
index 0000000..c977c4a
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/runner.exe.manifest
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.cpp b/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.cpp
new file mode 100644
index 0000000..077d1ac
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.cpp
@@ -0,0 +1,68 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr);
+  if (target_length == 0) {
+    return std::string();
+  }
+  std::string utf8_string;
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, utf8_string.data(),
+      target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.h b/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.h
new file mode 100644
index 0000000..54414c9
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/utils.h
@@ -0,0 +1,23 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.cpp b/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.cpp
new file mode 100644
index 0000000..20c47ea
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.cpp
@@ -0,0 +1,249 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "win32_window.h"
+
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+    FreeLibrary(user32_module);
+  }
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::CreateAndShow(const std::wstring& title,
+                                const Point& origin,
+                                const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  return OnCreate();
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
diff --git a/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.h b/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.h
new file mode 100644
index 0000000..1dab177
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/windows/runner/win32_window.h
@@ -0,0 +1,102 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates and shows a win32 window with |title| and position and size using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size to will treat the width height passed in to this function
+  // as logical pixels and scale to appropriate for the default monitor. Returns
+  // true if the window was created successfully.
+  bool CreateAndShow(const std::wstring& title,
+                     const Point& origin,
+                     const Size& size);
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responsponds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_
diff --git a/dev/benchmarks/platform_views_layout/.metadata b/dev/benchmarks/platform_views_layout/.metadata
new file mode 100644
index 0000000..1b06421
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: ab51a0260d29d50800ae5c9665ecb01883a9b503
+  channel: master
+
+project_type: app
diff --git a/dev/benchmarks/platform_views_layout/android/.gitignore b/dev/benchmarks/platform_views_layout/android/.gitignore
new file mode 100644
index 0000000..6f56801
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_views_layout/android/app/build.gradle b/dev/benchmarks/platform_views_layout/android/app/build.gradle
index 2190a0f..8490fa5 100644
--- a/dev/benchmarks/platform_views_layout/android/app/build.gradle
+++ b/dev/benchmarks/platform_views_layout/android/app/build.gradle
@@ -5,8 +5,8 @@
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
-    localPropertiesFile.withInputStream { stream ->
-        localProperties.load(stream)
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
     }
 }
 
@@ -15,7 +15,18 @@
     throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
@@ -26,11 +37,21 @@
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "dev.flutter.platform_views_layout"
         minSdkVersion flutter.minSdkVersion
         targetSdkVersion flutter.targetSdkVersion
-        versionCode 1
-        versionName "0.0.1"
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
     }
 
     buildTypes {
@@ -45,3 +66,7 @@
 flutter {
     source '../..'
 }
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/debug/AndroidManifest.xml b/dev/benchmarks/platform_views_layout/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..d91b964
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_views_layout">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/AndroidManifest.xml b/dev/benchmarks/platform_views_layout/android/app/src/main/AndroidManifest.xml
index b947c94..fc35019 100644
--- a/dev/benchmarks/platform_views_layout/android/app/src/main/AndroidManifest.xml
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/AndroidManifest.xml
@@ -3,21 +3,34 @@
 found in the LICENSE file. -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="dev.benchmarks.platform_views_layout">
-
-    <uses-permission android:name="android.permission.INTERNET"/>
-
-    <application android:name="io.flutter.app.FlutterApplication" android:label="platform_view_layout">
-        <activity android:name=".DummyPlatformViewActivity"
-                  android:launchMode="singleTop"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
+    package="dev.flutter.platform_views_layout">
+   <application
+        android:label="platform_views_layout"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java b/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java
deleted file mode 100644
index 65fc1bb..0000000
--- a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout;
-
-import android.content.Context;
-import android.graphics.Color;
-import android.view.View;
-import android.widget.TextView;
-import io.flutter.plugin.platform.PlatformView;
-
-public class DummyPlatformView implements PlatformView {
-    private final TextView textView;
-
-    @SuppressWarnings("unchecked")
-    DummyPlatformView(final Context context, int id) {
-        textView = new TextView(context);
-        textView.setTextSize(72);
-        textView.setBackgroundColor(Color.rgb(255, 255, 255));
-        textView.setText("DummyPlatformView");
-    }
-
-    @Override
-    public View getView() {
-        return textView;
-    }
-
-    @Override
-    public void dispose() {}
-}
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java b/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java
deleted file mode 100644
index cc2c72e..0000000
--- a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout;
-
-import androidx.annotation.NonNull;
-import io.flutter.embedding.android.FlutterActivity;
-import io.flutter.embedding.engine.FlutterEngine;
-
-public class DummyPlatformViewActivity extends FlutterActivity {
-    @Override
-    public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
-        flutterEngine
-            .getPlatformViewsController()
-            .getRegistry()
-            .registerViewFactory("benchmarks/platform_views_layout/DummyPlatformView", new DummyPlatformViewFactory());
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java b/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java
deleted file mode 100644
index 1963cd6..0000000
--- a/dev/benchmarks/platform_views_layout/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout;
-
-import android.content.Context;
-import androidx.annotation.Nullable;
-import io.flutter.plugin.common.MessageCodec;
-import io.flutter.plugin.common.StringCodec;
-import io.flutter.plugin.platform.PlatformView;
-import io.flutter.plugin.platform.PlatformViewFactory;
-import java.nio.ByteBuffer;
-
-public final class DummyPlatformViewFactory extends PlatformViewFactory {
-    DummyPlatformViewFactory() {
-        super(
-            new MessageCodec<Object>() {
-                @Nullable
-                @Override
-                public ByteBuffer encodeMessage(@Nullable Object o) {
-                    if (o instanceof String) {
-                    return StringCodec.INSTANCE.encodeMessage((String) o);
-                    }
-                    return null;
-                }
-
-                @Nullable
-                @Override
-                public Object decodeMessage(@Nullable ByteBuffer byteBuffer) {
-                    return StringCodec.INSTANCE.decodeMessage(byteBuffer);
-                }
-            }
-        );
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    public PlatformView create(Context context, int id, Object args) {
-        return new DummyPlatformView(context, id);
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/kotlin/dev/flutter/platform_views_layout/MainActivity.kt b/dev/benchmarks/platform_views_layout/android/app/src/main/kotlin/dev/flutter/platform_views_layout/MainActivity.kt
new file mode 100644
index 0000000..6572550
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/kotlin/dev/flutter/platform_views_layout/MainActivity.kt
@@ -0,0 +1,6 @@
+package dev.flutter.platform_views_layout
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable-v21/launch_background.xml b/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..c7238f4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable/launch_background.xml b/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..32d7798
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..db77bb4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..17987b7
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..09d4391
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d5f1c8d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4d6372e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/values-night/styles.xml b/dev/benchmarks/platform_views_layout/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..455a16f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/main/res/values/styles.xml b/dev/benchmarks/platform_views_layout/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..c5ad344
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_views_layout/android/app/src/profile/AndroidManifest.xml b/dev/benchmarks/platform_views_layout/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..d91b964
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_views_layout">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_views_layout/android/build.gradle b/dev/benchmarks/platform_views_layout/android/build.gradle
index c9049d0..f7ec097 100644
--- a/dev/benchmarks/platform_views_layout/android/build.gradle
+++ b/dev/benchmarks/platform_views_layout/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {
diff --git a/dev/benchmarks/platform_views_layout/android/project-app.lockfile b/dev/benchmarks/platform_views_layout/android/project-app.lockfile
index 94865b0..3c50dcc 100644
--- a/dev/benchmarks/platform_views_layout/android/project-app.lockfile
+++ b/dev/benchmarks/platform_views_layout/android/project-app.lockfile
@@ -1,24 +1,24 @@
 # This is a Gradle generated file for dependency locking.
 # Manual edits can break the build and are not advised.
 # This file is expected to be part of source control.
-androidx.activity:activity:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.annotation:annotation:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.arch.core:core-common:2.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.arch.core:core-runtime:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.collection:collection:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.core:core:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.customview:customview:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.fragment:fragment:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-common-java8:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-common:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-livedata-core:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-livedata:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-runtime:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-viewmodel:2.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.loader:loader:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.savedstate:savedstate:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.versionedparcelable:versionedparcelable:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.viewpager:viewpager:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.activity:activity:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.annotation:annotation:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-common:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-runtime:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.collection:collection:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.core:core:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.customview:customview:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.fragment:fragment:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common-java8:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata-core:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-runtime:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-viewmodel:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.loader:loader:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.savedstate:savedstate:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.versionedparcelable:versionedparcelable:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.viewpager:viewpager:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 com.android.tools.analytics-library:protos:27.1.3=lintClassPath
 com.android.tools.analytics-library:shared:27.1.3=lintClassPath
 com.android.tools.analytics-library:tracker:27.1.3=lintClassPath
@@ -83,17 +83,26 @@
 org.codehaus.mojo:animal-sniffer-annotations:1.18=lintClassPath
 org.glassfish.jaxb:jaxb-runtime:2.3.1=lintClassPath
 org.glassfish.jaxb:txw2:2.3.1=lintClassPath
+org.jetbrains.intellij.deps:trove4j:1.0.20181211=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-klib-commonizer-embeddable:1.4.32=kotlinKlibCommonizerClasspath
 org.jetbrains.kotlin:kotlin-reflect:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-reflect:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
 org.jetbrains.kotlin:kotlin-stdlib-common:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72=lintClassPath
 org.jetbrains.kotlin:kotlin-stdlib:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.trove4j:trove4j:20160824=lintClassPath
-org.jetbrains:annotations:13.0=lintClassPath
+org.jetbrains:annotations:13.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jvnet.staxex:stax-ex:1.8=lintClassPath
 org.ow2.asm:asm-analysis:7.0=lintClassPath
 org.ow2.asm:asm-commons:7.0=lintClassPath
 org.ow2.asm:asm-tree:7.0=lintClassPath
 org.ow2.asm:asm-util:7.0=lintClassPath
 org.ow2.asm:asm:7.0=lintClassPath
-empty=androidApis,androidTestUtil,compile,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestRuntimeClasspath,debugAnnotationProcessorClasspath,debugReverseMetadataValues,debugUnitTestAnnotationProcessorClasspath,debugWearBundling,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileReverseMetadataValues,profileUnitTestAnnotationProcessorClasspath,profileWearBundling,releaseAnnotationProcessorClasspath,releaseReverseMetadataValues,releaseUnitTestAnnotationProcessorClasspath,releaseWearBundling,testCompile
+empty=androidApis,androidTestApiDependenciesMetadata,androidTestCompileOnlyDependenciesMetadata,androidTestDebugApiDependenciesMetadata,androidTestDebugCompileOnlyDependenciesMetadata,androidTestDebugImplementationDependenciesMetadata,androidTestDebugRuntimeOnlyDependenciesMetadata,androidTestImplementationDependenciesMetadata,androidTestProfileApiDependenciesMetadata,androidTestProfileCompileOnlyDependenciesMetadata,androidTestProfileImplementationDependenciesMetadata,androidTestProfileRuntimeOnlyDependenciesMetadata,androidTestReleaseApiDependenciesMetadata,androidTestReleaseCompileOnlyDependenciesMetadata,androidTestReleaseImplementationDependenciesMetadata,androidTestReleaseRuntimeOnlyDependenciesMetadata,androidTestRuntimeOnlyDependenciesMetadata,androidTestUtil,apiDependenciesMetadata,compile,compileOnlyDependenciesMetadata,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestApiDependenciesMetadata,debugAndroidTestCompile,debugAndroidTestCompileOnlyDependenciesMetadata,debugAndroidTestImplementationDependenciesMetadata,debugAndroidTestRuntime,debugAndroidTestRuntimeClasspath,debugAndroidTestRuntimeOnlyDependenciesMetadata,debugAnnotationProcessorClasspath,debugCompile,debugCompileOnly,debugCompileOnlyDependenciesMetadata,debugReverseMetadataValues,debugRuntime,debugRuntimeOnlyDependenciesMetadata,debugUnitTestAnnotationProcessorClasspath,debugUnitTestApiDependenciesMetadata,debugUnitTestCompile,debugUnitTestCompileOnlyDependenciesMetadata,debugUnitTestImplementationDependenciesMetadata,debugUnitTestRuntime,debugUnitTestRuntimeOnlyDependenciesMetadata,debugWearBundling,kotlinCompilerPluginClasspath,kotlinNativeCompilerPluginClasspath,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileCompile,profileCompileOnly,profileCompileOnlyDependenciesMetadata,profileReverseMetadataValues,profileRuntime,profileRuntimeOnlyDependenciesMetadata,profileUnitTestAnnotationProcessorClasspath,profileUnitTestApiDependenciesMetadata,profileUnitTestCompile,profileUnitTestCompileOnlyDependenciesMetadata,profileUnitTestImplementationDependenciesMetadata,profileUnitTestRuntime,profileUnitTestRuntimeOnlyDependenciesMetadata,profileWearBundling,releaseAnnotationProcessorClasspath,releaseCompile,releaseCompileOnly,releaseCompileOnlyDependenciesMetadata,releaseReverseMetadataValues,releaseRuntime,releaseRuntimeOnlyDependenciesMetadata,releaseUnitTestAnnotationProcessorClasspath,releaseUnitTestApiDependenciesMetadata,releaseUnitTestCompile,releaseUnitTestCompileOnlyDependenciesMetadata,releaseUnitTestImplementationDependenciesMetadata,releaseUnitTestRuntime,releaseUnitTestRuntimeOnlyDependenciesMetadata,releaseWearBundling,runtimeOnlyDependenciesMetadata,testApiDependenciesMetadata,testCompile,testCompileOnlyDependenciesMetadata,testDebugApiDependenciesMetadata,testDebugCompileOnlyDependenciesMetadata,testDebugImplementationDependenciesMetadata,testDebugRuntimeOnlyDependenciesMetadata,testImplementationDependenciesMetadata,testProfileApiDependenciesMetadata,testProfileCompileOnlyDependenciesMetadata,testProfileImplementationDependenciesMetadata,testProfileRuntimeOnlyDependenciesMetadata,testReleaseApiDependenciesMetadata,testReleaseCompileOnlyDependenciesMetadata,testReleaseImplementationDependenciesMetadata,testReleaseRuntimeOnlyDependenciesMetadata,testRuntimeOnlyDependenciesMetadata
diff --git a/dev/benchmarks/platform_views_layout/ios/.gitignore b/dev/benchmarks/platform_views_layout/ios/.gitignore
new file mode 100644
index 0000000..7a7f987
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/.gitignore
@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/dev/benchmarks/platform_views_layout/ios/Flutter/AppFrameworkInfo.plist b/dev/benchmarks/platform_views_layout/ios/Flutter/AppFrameworkInfo.plist
index f2872cf..8d4492f 100644
--- a/dev/benchmarks/platform_views_layout/ios/Flutter/AppFrameworkInfo.plist
+++ b/dev/benchmarks/platform_views_layout/ios/Flutter/AppFrameworkInfo.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
   <key>CFBundleDevelopmentRegion</key>
-  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <string>en</string>
   <key>CFBundleExecutable</key>
   <string>App</string>
   <key>CFBundleIdentifier</key>
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/project.pbxproj
index 7452c07..d01981b 100644
--- a/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/project.pbxproj
+++ b/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/project.pbxproj
@@ -7,11 +7,9 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		647B792C24207B8900ABA501 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B792B24207B8900ABA501 /* AppDelegate.m */; };
-		647B792F24207D1600ABA501 /* DummyPlatformView.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B792E24207D1600ABA501 /* DummyPlatformView.m */; };
-		647B793224208A4200ABA501 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */; };
-		746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */; };
-		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -31,18 +29,15 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
-		647B792824207ADD00ABA501 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
-		647B792B24207B8900ABA501 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
-		647B792D24207CC400ABA501 /* DummyPlatformView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DummyPlatformView.h; sourceTree = "<group>"; };
-		647B792E24207D1600ABA501 /* DummyPlatformView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DummyPlatformView.m; sourceTree = "<group>"; };
-		647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
-		647B793124208A4200ABA501 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
-		746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
@@ -63,7 +58,7 @@
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -77,7 +72,6 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
-				CF3B75C9A7D2FA2A4C99F110 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -92,29 +86,18 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
-				647B793124208A4200ABA501 /* GeneratedPluginRegistrant.h */,
-				647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
 				97C147021CF9000F007C117D /* Info.plist */,
-				97C146F11CF9000F007C117D /* Supporting Files */,
-				647B792824207ADD00ABA501 /* AppDelegate.h */,
-				647B792B24207B8900ABA501 /* AppDelegate.m */,
-				647B792D24207CC400ABA501 /* DummyPlatformView.h */,
-				647B792E24207D1600ABA501 /* DummyPlatformView.m */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
 			path = Runner;
 			sourceTree = "<group>";
 		};
-		97C146F11CF9000F007C117D /* Supporting Files */ = {
-			isa = PBXGroup;
-			children = (
-				97C146F21CF9000F007C117D /* main.m */,
-			);
-			name = "Supporting Files";
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -149,6 +132,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -176,7 +160,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
-				746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
 			);
@@ -220,10 +204,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				647B792C24207B8900ABA501 /* AppDelegate.m in Sources */,
-				97C146F31CF9000F007C117D /* main.m in Sources */,
-				647B792F24207D1600ABA501 /* DummyPlatformView.m in Sources */,
-				647B793224208A4200ABA501 /* GeneratedPluginRegistrant.m in Sources */,
+				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
+				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -249,7 +231,7 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
-		24D15A8E21828735001BB33E /* Profile */ = {
+		249021D3217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
@@ -299,17 +281,23 @@
 			};
 			name = Profile;
 		};
-		24D15A8F21828735001BB33E /* Profile */ = {
+		249021D4217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Profile;
@@ -414,6 +402,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -424,12 +414,19 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -439,12 +436,18 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayout;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayout;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
@@ -457,7 +460,7 @@
 			buildConfigurations = (
 				97C147031CF9000F007C117D /* Debug */,
 				97C147041CF9000F007C117D /* Release */,
-				24D15A8E21828735001BB33E /* Profile */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -467,7 +470,7 @@
 			buildConfigurations = (
 				97C147061CF9000F007C117D /* Debug */,
 				97C147071CF9000F007C117D /* Release */,
-				24D15A8F21828735001BB33E /* Profile */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 3db53b6..c87d15a 100644
--- a/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/dev/benchmarks/platform_views_layout/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -27,8 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
@@ -38,8 +36,8 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
+      <Testables>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -61,8 +59,6 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Profile"
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.h b/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.h
deleted file mode 100644
index 7d5bcd3..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.h
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <Flutter/Flutter.h>
-#import <UIKit/UIKit.h>
-
-@interface AppDelegate : FlutterAppDelegate
-
-@end
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.m b/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.m
deleted file mode 100644
index a1666fd..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.m
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "AppDelegate.h"
-#include "DummyPlatformView.h"
-#include "GeneratedPluginRegistrant.h"
-
-@implementation AppDelegate
-
-- (BOOL)application:(UIApplication *)application
-    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-  [GeneratedPluginRegistrant registerWithRegistry:self];
-
-   NSObject<FlutterPluginRegistrar>* registrar =
-      [self registrarForPlugin:@"benchmarks/platform_views_layout/DummyPlatformViewPlugin"];
-
-  DummyPlatformViewFactory* dummyPlatformViewFactory = [[DummyPlatformViewFactory alloc] init];
-  [registrar registerViewFactory:dummyPlatformViewFactory
-                                withId:@"benchmarks/platform_views_layout/DummyPlatformView"
-      gestureRecognizersBlockingPolicy:FlutterPlatformViewGestureRecognizersBlockingPolicyEager];
-
-  // Override point for customization after application launch.
-  return [super application:application didFinishLaunchingWithOptions:launchOptions];
-}
-
-@end
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.swift b/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d815fed
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/AppDelegate.swift
@@ -0,0 +1,17 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d36b1fa
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
new file mode 100644
index 0000000..dc9ada4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
new file mode 100644
index 0000000..28c6bf0
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
similarity index 100%
rename from dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png
rename to dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
new file mode 100644
index 0000000..4cde121
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
new file mode 100644
index 0000000..d0ef06e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
new file mode 100644
index 0000000..dcdc230
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
new file mode 100644
index 0000000..c8f9ed8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
new file mode 100644
index 0000000..75b2d16
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
new file mode 100644
index 0000000..c4df70d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
new file mode 100644
index 0000000..6a84f41
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
deleted file mode 100644
index 5d2bad8..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
+++ /dev/null
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
new file mode 100644
index 0000000..d0e1f58
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dev/benchmarks/platform_views_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
index ebf48f6..f2e259c 100644
--- a/dev/benchmarks/platform_views_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -10,13 +10,20 @@
             <objects>
                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
                     <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
-                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -24,4 +31,7 @@
             <point key="canvasLocation" x="53" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
 </document>
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.h b/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.h
deleted file mode 100644
index 6d21bf0..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <Flutter/Flutter.h>
-
-NS_ASSUME_NONNULL_BEGIN
-
-@interface DummyPlatformView : NSObject <FlutterPlatformView>
-
-- (instancetype)initWithFrame:(CGRect)frame
-               viewIdentifier:(int64_t)viewId
-                    arguments:(id _Nullable)args
-              binaryMessenger:(NSObject<FlutterBinaryMessenger>*)messenger;
-
-- (UIView*)view;
-@end
-
-@interface DummyPlatformViewFactory : NSObject <FlutterPlatformViewFactory>
-- (instancetype)initWithMessenger:(NSObject<FlutterBinaryMessenger>*)messenger;
-@end
-
-NS_ASSUME_NONNULL_END
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.m b/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.m
deleted file mode 100644
index c92cd05..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/DummyPlatformView.m
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "DummyPlatformView.h"
-
-@implementation DummyPlatformViewFactory {
-  NSObject<FlutterBinaryMessenger>* _messenger;
-}
-
-- (instancetype)initWithMessenger:(NSObject<FlutterBinaryMessenger>*)messenger {
-  self = [super init];
-  if (self) {
-    _messenger = messenger;
-  }
-  return self;
-}
-
-- (NSObject<FlutterPlatformView>*)createWithFrame:(CGRect)frame
-                                   viewIdentifier:(int64_t)viewId
-                                        arguments:(id _Nullable)args {
-  return [[DummyPlatformView alloc] initWithFrame:frame
-                                   viewIdentifier:viewId
-                                        arguments:args
-                                  binaryMessenger:_messenger];
-}
-
-- (NSObject<FlutterMessageCodec>*)createArgsCodec {
-  return [FlutterStringCodec sharedInstance];
-}
-
-@end
-
-@implementation DummyPlatformView {
-  UITextView* _view;
-  FlutterMethodChannel* _channel;
-}
-
-- (instancetype)initWithFrame:(CGRect)frame
-               viewIdentifier:(int64_t)viewId
-                    arguments:(id _Nullable)args
-              binaryMessenger:(NSObject<FlutterBinaryMessenger>*)messenger {
-  if ([super init]) {
-    _view = [[UITextView alloc] initWithFrame:CGRectMake(0.0, 0.0, 250.0, 100.0)];
-    _view.textColor = UIColor.blueColor;
-    _view.backgroundColor = UIColor.lightGrayColor;
-    [_view setFont:[UIFont systemFontOfSize:52]];
-    _view.text = @"DummyPlatformView";
-  }
-  return self;
-}
-
-- (UIView*)view {
-  return _view;
-}
-
-@end
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Info.plist b/dev/benchmarks/platform_views_layout/ios/Runner/Info.plist
index d314a4f..6f295f0 100644
--- a/dev/benchmarks/platform_views_layout/ios/Runner/Info.plist
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Info.plist
@@ -7,19 +7,19 @@
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.yourcompany.platformViewsLayout</string>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
-	<string>complex_layout</string>
+	<string>platform_views_layout</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(FLUTTER_BUILD_NAME)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
@@ -41,9 +41,5 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
-	<key>io.flutter.embedded_views_preview</key>
-	<true/>
-	<key>io.flutter.metal_preview</key>
-	<true/>
 </dict>
 </plist>
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/Runner-Bridging-Header.h b/dev/benchmarks/platform_views_layout/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..95b7baf
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1,5 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "GeneratedPluginRegistrant.h"
diff --git a/dev/benchmarks/platform_views_layout/ios/Runner/main.m b/dev/benchmarks/platform_views_layout/ios/Runner/main.m
deleted file mode 100644
index 8607072..0000000
--- a/dev/benchmarks/platform_views_layout/ios/Runner/main.m
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <UIKit/UIKit.h>
-#import <Flutter/Flutter.h>
-#import "AppDelegate.h"
-
-int main(int argc, char * argv[]) {
-    @autoreleasepool {
-        return UIApplicationMain(argc, argv, nil,
-                                 NSStringFromClass([AppDelegate class]));
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout/linux/.gitignore b/dev/benchmarks/platform_views_layout/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/dev/benchmarks/platform_views_layout/linux/CMakeLists.txt b/dev/benchmarks/platform_views_layout/linux/CMakeLists.txt
new file mode 100644
index 0000000..51ba596
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "platform_views_layout")
+set(APPLICATION_ID "dev.flutter.platform_views_layout")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/dev/benchmarks/platform_views_layout/linux/flutter/CMakeLists.txt b/dev/benchmarks/platform_views_layout/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..e71a16d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..e0f0a47
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugins.cmake b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_views_layout/linux/main.cc b/dev/benchmarks/platform_views_layout/linux/main.cc
new file mode 100644
index 0000000..281a29e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/main.cc
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/dev/benchmarks/platform_views_layout/linux/my_application.cc b/dev/benchmarks/platform_views_layout/linux/my_application.cc
new file mode 100644
index 0000000..a65d02b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/my_application.cc
@@ -0,0 +1,108 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "platform_views_layout");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "platform_views_layout");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/dev/benchmarks/platform_views_layout/linux/my_application.h b/dev/benchmarks/platform_views_layout/linux/my_application.h
new file mode 100644
index 0000000..8c66ec4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/linux/my_application.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/dev/benchmarks/platform_views_layout/macos/.gitignore b/dev/benchmarks/platform_views_layout/macos/.gitignore
new file mode 100644
index 0000000..746adbb
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Debug.xcconfig b/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Debug.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Release.xcconfig b/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Release.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..b3d4049
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,572 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
+		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
+		33CC10ED2044A3C60003C045 /* platform_views_layout.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "platform_views_layout.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
+		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		33CC10F72044A3C60003C045 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = Runner/Info.plist; sourceTree = "<group>"; };
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+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..4e750e5
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "platform_views_layout.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/AppDelegate.swift b/dev/benchmarks/platform_views_layout/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d080d41
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..a2ec33f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000..3c4935a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000..ed4cc16
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000..483be61
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
new file mode 100644
index 0000000..bcbf36d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
new file mode 100644
index 0000000..9c0a652
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000..e71a726
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000..8a31fe2
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Base.lproj/MainMenu.xib b/dev/benchmarks/platform_views_layout/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000..537341a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Configs/AppInfo.xcconfig b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000..4f7085f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = platform_views_layout
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayout
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2021 dev.flutter. All rights reserved.
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Debug.xcconfig b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000..36b0fd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Release.xcconfig b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000..dff4f49
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Warnings.xcconfig b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000..42bcbf4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/DebugProfile.entitlements b/dev/benchmarks/platform_views_layout/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000..dddb8a3
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Info.plist b/dev/benchmarks/platform_views_layout/macos/Runner/Info.plist
new file mode 100644
index 0000000..4789daa
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/MainFlutterWindow.swift b/dev/benchmarks/platform_views_layout/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000..a97a962
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,19 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout/macos/Runner/Release.entitlements b/dev/benchmarks/platform_views_layout/macos/Runner/Release.entitlements
new file mode 100644
index 0000000..852fa1a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout/web/favicon.png b/dev/benchmarks/platform_views_layout/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/favicon.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/web/icons/Icon-192.png b/dev/benchmarks/platform_views_layout/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/icons/Icon-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/web/icons/Icon-512.png b/dev/benchmarks/platform_views_layout/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/icons/Icon-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-192.png b/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-512.png b/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/icons/Icon-maskable-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/web/index.html b/dev/benchmarks/platform_views_layout/web/index.html
new file mode 100644
index 0000000..d3974d1
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/index.html
@@ -0,0 +1,109 @@
+<!DOCTYPE HTML>
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="platform_views_layout">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>platform_views_layout</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/dev/benchmarks/platform_views_layout/web/manifest.json b/dev/benchmarks/platform_views_layout/web/manifest.json
new file mode 100644
index 0000000..e64ff19
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "platform_views_layout",
+    "short_name": "platform_views_layout",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/.gitignore b/dev/benchmarks/platform_views_layout/windows/.gitignore
new file mode 100644
index 0000000..d492d0d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/.gitignore
@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
diff --git a/dev/benchmarks/platform_views_layout/windows/CMakeLists.txt b/dev/benchmarks/platform_views_layout/windows/CMakeLists.txt
new file mode 100644
index 0000000..badb038
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/CMakeLists.txt
@@ -0,0 +1,95 @@
+cmake_minimum_required(VERSION 3.14)
+project(platform_views_layout LANGUAGES CXX)
+
+set(BINARY_NAME "platform_views_layout")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Configure build options.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build
+add_subdirectory("runner")
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)
diff --git a/dev/benchmarks/platform_views_layout/windows/flutter/CMakeLists.txt b/dev/benchmarks/platform_views_layout/windows/flutter/CMakeLists.txt
new file mode 100644
index 0000000..b2e4bd8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/flutter/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
diff --git a/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..8b6d468
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..dc139d8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugins.cmake b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..4d10c25
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/CMakeLists.txt b/dev/benchmarks/platform_views_layout/windows/runner/CMakeLists.txt
new file mode 100644
index 0000000..de2d891
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+apply_standard_settings(${BINARY_NAME})
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+add_dependencies(${BINARY_NAME} flutter_assemble)
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/Runner.rc b/dev/benchmarks/platform_views_layout/windows/runner/Runner.rc
new file mode 100644
index 0000000..79a2cda
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/Runner.rc
@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#ifdef FLUTTER_BUILD_NUMBER
+#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#else
+#define VERSION_AS_NUMBER 1,0,0
+#endif
+
+#ifdef FLUTTER_BUILD_NAME
+#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.flutter" "\0"
+            VALUE "FileDescription", "A new Flutter project." "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "platform_views_layout" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2021 dev.flutter. All rights reserved." "\0"
+            VALUE "OriginalFilename", "platform_views_layout.exe" "\0"
+            VALUE "ProductName", "platform_views_layout" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.cpp b/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.cpp
new file mode 100644
index 0000000..9cbd310
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.cpp
@@ -0,0 +1,65 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.h b/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.h
new file mode 100644
index 0000000..bbc5836
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/flutter_window.h
@@ -0,0 +1,37 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/main.cpp b/dev/benchmarks/platform_views_layout/windows/runner/main.cpp
new file mode 100644
index 0000000..1e96d7b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/main.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.CreateAndShow(L"platform_views_layout", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/resource.h b/dev/benchmarks/platform_views_layout/windows/runner/resource.h
new file mode 100644
index 0000000..c245ff1
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/resource.h
@@ -0,0 +1,20 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/resources/app_icon.ico b/dev/benchmarks/platform_views_layout/windows/runner/resources/app_icon.ico
new file mode 100644
index 0000000..2e4cc82
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/resources/app_icon.ico
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/runner.exe.manifest b/dev/benchmarks/platform_views_layout/windows/runner/runner.exe.manifest
new file mode 100644
index 0000000..c977c4a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/runner.exe.manifest
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/utils.cpp b/dev/benchmarks/platform_views_layout/windows/runner/utils.cpp
new file mode 100644
index 0000000..077d1ac
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/utils.cpp
@@ -0,0 +1,68 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr);
+  if (target_length == 0) {
+    return std::string();
+  }
+  std::string utf8_string;
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, utf8_string.data(),
+      target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/utils.h b/dev/benchmarks/platform_views_layout/windows/runner/utils.h
new file mode 100644
index 0000000..54414c9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/utils.h
@@ -0,0 +1,23 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/win32_window.cpp b/dev/benchmarks/platform_views_layout/windows/runner/win32_window.cpp
new file mode 100644
index 0000000..20c47ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/win32_window.cpp
@@ -0,0 +1,249 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "win32_window.h"
+
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+    FreeLibrary(user32_module);
+  }
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::CreateAndShow(const std::wstring& title,
+                                const Point& origin,
+                                const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  return OnCreate();
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
diff --git a/dev/benchmarks/platform_views_layout/windows/runner/win32_window.h b/dev/benchmarks/platform_views_layout/windows/runner/win32_window.h
new file mode 100644
index 0000000..1dab177
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/windows/runner/win32_window.h
@@ -0,0 +1,102 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates and shows a win32 window with |title| and position and size using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size to will treat the width height passed in to this function
+  // as logical pixels and scale to appropriate for the default monitor. Returns
+  // true if the window was created successfully.
+  bool CreateAndShow(const std::wstring& title,
+                     const Point& origin,
+                     const Size& size);
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responsponds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/.metadata b/dev/benchmarks/platform_views_layout_hybrid_composition/.metadata
new file mode 100644
index 0000000..1b06421
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: ab51a0260d29d50800ae5c9665ecb01883a9b503
+  channel: master
+
+project_type: app
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore
new file mode 100644
index 0000000..6f56801
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore
@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/build.gradle b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/build.gradle
index 2190a0f..1974599 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/build.gradle
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/build.gradle
@@ -5,8 +5,8 @@
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
-    localPropertiesFile.withInputStream { stream ->
-        localProperties.load(stream)
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
     }
 }
 
@@ -15,7 +15,18 @@
     throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
@@ -26,11 +37,21 @@
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "dev.flutter.platform_views_layout_hybrid_composition"
         minSdkVersion flutter.minSdkVersion
         targetSdkVersion flutter.targetSdkVersion
-        versionCode 1
-        versionName "0.0.1"
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
     }
 
     buildTypes {
@@ -45,3 +66,7 @@
 flutter {
     source '../..'
 }
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/debug/AndroidManifest.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..6a47c5f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_views_layout_hybrid_composition">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/AndroidManifest.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/AndroidManifest.xml
index 0343ef3..0e3082f 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/AndroidManifest.xml
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/AndroidManifest.xml
@@ -3,24 +3,34 @@
 found in the LICENSE file. -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="dev.benchmarks.platform_views_layout_hybrid_composition">
-
-    <uses-permission android:name="android.permission.INTERNET"/>
-
-    <application android:name="io.flutter.app.FlutterApplication" android:label="platform_view_layout">
-        <activity android:name=".DummyPlatformViewActivity"
-                  android:launchMode="singleTop"
-                  android:theme="@android:style/Theme.Black.NoTitleBar"
-                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-                  android:hardwareAccelerated="true"
-                  android:windowSoftInputMode="adjustResize">
+    package="dev.flutter.platform_views_layout_hybrid_composition">
+   <application
+        android:label="platform_views_layout_hybrid_composition"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data
-            android:name="io.flutter.embedded_views_preview"
-            android:value="true" />
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java
deleted file mode 100644
index 08f9e22..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformView.java
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout_hybrid_composition;
-
-import android.content.Context;
-import android.graphics.Color;
-import android.view.View;
-import android.widget.TextView;
-import io.flutter.plugin.platform.PlatformView;
-
-public class DummyPlatformView implements PlatformView {
-    private final TextView textView;
-
-    @SuppressWarnings("unchecked")
-    DummyPlatformView(final Context context, int id) {
-        textView = new TextView(context);
-        textView.setTextSize(72);
-        textView.setBackgroundColor(Color.rgb(255, 255, 255));
-        textView.setText("DummyPlatformView");
-    }
-
-    @Override
-    public View getView() {
-        return textView;
-    }
-
-    @Override
-    public void dispose() {}
-}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java
deleted file mode 100644
index eeb4a2f..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewActivity.java
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout_hybrid_composition;
-
-import androidx.annotation.NonNull;
-import io.flutter.embedding.android.FlutterActivity;
-import io.flutter.embedding.engine.FlutterEngine;
-
-public class DummyPlatformViewActivity extends FlutterActivity {
-    @Override
-    public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
-        flutterEngine
-            .getPlatformViewsController()
-            .getRegistry()
-            .registerViewFactory("benchmarks/platform_views_layout_hybrid_composition/DummyPlatformView", new DummyPlatformViewFactory());
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java
deleted file mode 100644
index a546aad..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/java/dev/bechmarks/platform_views_layout/DummyPlatformViewFactory.java
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package dev.benchmarks.platform_views_layout_hybrid_composition;
-
-import android.content.Context;
-import androidx.annotation.Nullable;
-import io.flutter.plugin.common.MessageCodec;
-import io.flutter.plugin.common.StringCodec;
-import io.flutter.plugin.platform.PlatformView;
-import io.flutter.plugin.platform.PlatformViewFactory;
-import java.nio.ByteBuffer;
-
-public final class DummyPlatformViewFactory extends PlatformViewFactory {
-    DummyPlatformViewFactory() {
-        super(
-            new MessageCodec<Object>() {
-                @Nullable
-                @Override
-                public ByteBuffer encodeMessage(@Nullable Object o) {
-                    if (o instanceof String) {
-                    return StringCodec.INSTANCE.encodeMessage((String) o);
-                    }
-                    return null;
-                }
-
-                @Nullable
-                @Override
-                public Object decodeMessage(@Nullable ByteBuffer byteBuffer) {
-                    return StringCodec.INSTANCE.decodeMessage(byteBuffer);
-                }
-            }
-        );
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    public PlatformView create(Context context, int id, Object args) {
-        return new DummyPlatformView(context, id);
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/kotlin/dev/flutter/platform_views_layout_hybrid_composition/MainActivity.kt b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/kotlin/dev/flutter/platform_views_layout_hybrid_composition/MainActivity.kt
new file mode 100644
index 0000000..517dcf9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/kotlin/dev/flutter/platform_views_layout_hybrid_composition/MainActivity.kt
@@ -0,0 +1,6 @@
+package dev.flutter.platform_views_layout_hybrid_composition
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable-v21/launch_background.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..c7238f4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable/launch_background.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..32d7798
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,16 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..db77bb4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..17987b7
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..09d4391
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d5f1c8d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4d6372e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values-night/styles.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..455a16f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values/styles.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..c5ad344
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,22 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/profile/AndroidManifest.xml b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..6a47c5f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,11 @@
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.flutter.platform_views_layout_hybrid_composition">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/build.gradle b/dev/benchmarks/platform_views_layout_hybrid_composition/android/build.gradle
index c9049d0..f7ec097 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/build.gradle
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/project-app.lockfile b/dev/benchmarks/platform_views_layout_hybrid_composition/android/project-app.lockfile
index 94865b0..3c50dcc 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/android/project-app.lockfile
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/project-app.lockfile
@@ -1,24 +1,24 @@
 # This is a Gradle generated file for dependency locking.
 # Manual edits can break the build and are not advised.
 # This file is expected to be part of source control.
-androidx.activity:activity:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.annotation:annotation:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.arch.core:core-common:2.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.arch.core:core-runtime:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.collection:collection:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.core:core:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.customview:customview:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.fragment:fragment:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-common-java8:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-common:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-livedata-core:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-livedata:2.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-runtime:2.2.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.lifecycle:lifecycle-viewmodel:2.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.loader:loader:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.savedstate:savedstate:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.versionedparcelable:versionedparcelable:1.1.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
-androidx.viewpager:viewpager:1.0.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileCompileClasspath,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.activity:activity:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.annotation:annotation:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-common:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.arch.core:core-runtime:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.collection:collection:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.core:core:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.customview:customview:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.fragment:fragment:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common-java8:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-common:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata-core:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-livedata:2.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-runtime:2.2.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.lifecycle:lifecycle-viewmodel:2.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.loader:loader:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.savedstate:savedstate:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.versionedparcelable:versionedparcelable:1.1.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
+androidx.viewpager:viewpager:1.0.0=debugAndroidTestCompileClasspath,debugApiDependenciesMetadata,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,profileApiDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseApiDependenciesMetadata,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 com.android.tools.analytics-library:protos:27.1.3=lintClassPath
 com.android.tools.analytics-library:shared:27.1.3=lintClassPath
 com.android.tools.analytics-library:tracker:27.1.3=lintClassPath
@@ -83,17 +83,26 @@
 org.codehaus.mojo:animal-sniffer-annotations:1.18=lintClassPath
 org.glassfish.jaxb:jaxb-runtime:2.3.1=lintClassPath
 org.glassfish.jaxb:txw2:2.3.1=lintClassPath
+org.jetbrains.intellij.deps:trove4j:1.0.20181211=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-klib-commonizer-embeddable:1.4.32=kotlinKlibCommonizerClasspath
 org.jetbrains.kotlin:kotlin-reflect:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-reflect:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.32=kotlinCompilerClasspath,kotlinKlibCommonizerClasspath
 org.jetbrains.kotlin:kotlin-stdlib-common:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72=lintClassPath
 org.jetbrains.kotlin:kotlin-stdlib:1.3.72=lintClassPath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.32=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jetbrains.trove4j:trove4j:20160824=lintClassPath
-org.jetbrains:annotations:13.0=lintClassPath
+org.jetbrains:annotations:13.0=debugAndroidTestCompileClasspath,debugCompileClasspath,debugImplementationDependenciesMetadata,debugRuntimeClasspath,debugUnitTestCompileClasspath,debugUnitTestRuntimeClasspath,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,lintClassPath,profileCompileClasspath,profileImplementationDependenciesMetadata,profileRuntimeClasspath,profileUnitTestCompileClasspath,profileUnitTestRuntimeClasspath,releaseCompileClasspath,releaseImplementationDependenciesMetadata,releaseRuntimeClasspath,releaseUnitTestCompileClasspath,releaseUnitTestRuntimeClasspath
 org.jvnet.staxex:stax-ex:1.8=lintClassPath
 org.ow2.asm:asm-analysis:7.0=lintClassPath
 org.ow2.asm:asm-commons:7.0=lintClassPath
 org.ow2.asm:asm-tree:7.0=lintClassPath
 org.ow2.asm:asm-util:7.0=lintClassPath
 org.ow2.asm:asm:7.0=lintClassPath
-empty=androidApis,androidTestUtil,compile,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestRuntimeClasspath,debugAnnotationProcessorClasspath,debugReverseMetadataValues,debugUnitTestAnnotationProcessorClasspath,debugWearBundling,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileReverseMetadataValues,profileUnitTestAnnotationProcessorClasspath,profileWearBundling,releaseAnnotationProcessorClasspath,releaseReverseMetadataValues,releaseUnitTestAnnotationProcessorClasspath,releaseWearBundling,testCompile
+empty=androidApis,androidTestApiDependenciesMetadata,androidTestCompileOnlyDependenciesMetadata,androidTestDebugApiDependenciesMetadata,androidTestDebugCompileOnlyDependenciesMetadata,androidTestDebugImplementationDependenciesMetadata,androidTestDebugRuntimeOnlyDependenciesMetadata,androidTestImplementationDependenciesMetadata,androidTestProfileApiDependenciesMetadata,androidTestProfileCompileOnlyDependenciesMetadata,androidTestProfileImplementationDependenciesMetadata,androidTestProfileRuntimeOnlyDependenciesMetadata,androidTestReleaseApiDependenciesMetadata,androidTestReleaseCompileOnlyDependenciesMetadata,androidTestReleaseImplementationDependenciesMetadata,androidTestReleaseRuntimeOnlyDependenciesMetadata,androidTestRuntimeOnlyDependenciesMetadata,androidTestUtil,apiDependenciesMetadata,compile,compileOnlyDependenciesMetadata,coreLibraryDesugaring,debugAndroidTestAnnotationProcessorClasspath,debugAndroidTestApiDependenciesMetadata,debugAndroidTestCompile,debugAndroidTestCompileOnlyDependenciesMetadata,debugAndroidTestImplementationDependenciesMetadata,debugAndroidTestRuntime,debugAndroidTestRuntimeClasspath,debugAndroidTestRuntimeOnlyDependenciesMetadata,debugAnnotationProcessorClasspath,debugCompile,debugCompileOnly,debugCompileOnlyDependenciesMetadata,debugReverseMetadataValues,debugRuntime,debugRuntimeOnlyDependenciesMetadata,debugUnitTestAnnotationProcessorClasspath,debugUnitTestApiDependenciesMetadata,debugUnitTestCompile,debugUnitTestCompileOnlyDependenciesMetadata,debugUnitTestImplementationDependenciesMetadata,debugUnitTestRuntime,debugUnitTestRuntimeOnlyDependenciesMetadata,debugWearBundling,kotlinCompilerPluginClasspath,kotlinNativeCompilerPluginClasspath,lintChecks,lintPublish,profileAnnotationProcessorClasspath,profileCompile,profileCompileOnly,profileCompileOnlyDependenciesMetadata,profileReverseMetadataValues,profileRuntime,profileRuntimeOnlyDependenciesMetadata,profileUnitTestAnnotationProcessorClasspath,profileUnitTestApiDependenciesMetadata,profileUnitTestCompile,profileUnitTestCompileOnlyDependenciesMetadata,profileUnitTestImplementationDependenciesMetadata,profileUnitTestRuntime,profileUnitTestRuntimeOnlyDependenciesMetadata,profileWearBundling,releaseAnnotationProcessorClasspath,releaseCompile,releaseCompileOnly,releaseCompileOnlyDependenciesMetadata,releaseReverseMetadataValues,releaseRuntime,releaseRuntimeOnlyDependenciesMetadata,releaseUnitTestAnnotationProcessorClasspath,releaseUnitTestApiDependenciesMetadata,releaseUnitTestCompile,releaseUnitTestCompileOnlyDependenciesMetadata,releaseUnitTestImplementationDependenciesMetadata,releaseUnitTestRuntime,releaseUnitTestRuntimeOnlyDependenciesMetadata,releaseWearBundling,runtimeOnlyDependenciesMetadata,testApiDependenciesMetadata,testCompile,testCompileOnlyDependenciesMetadata,testDebugApiDependenciesMetadata,testDebugCompileOnlyDependenciesMetadata,testDebugImplementationDependenciesMetadata,testDebugRuntimeOnlyDependenciesMetadata,testImplementationDependenciesMetadata,testProfileApiDependenciesMetadata,testProfileCompileOnlyDependenciesMetadata,testProfileImplementationDependenciesMetadata,testProfileRuntimeOnlyDependenciesMetadata,testReleaseApiDependenciesMetadata,testReleaseCompileOnlyDependenciesMetadata,testReleaseImplementationDependenciesMetadata,testReleaseRuntimeOnlyDependenciesMetadata,testRuntimeOnlyDependenciesMetadata
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/.gitignore
new file mode 100644
index 0000000..7a7f987
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/.gitignore
@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Flutter/AppFrameworkInfo.plist b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Flutter/AppFrameworkInfo.plist
index f2872cf..8d4492f 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Flutter/AppFrameworkInfo.plist
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Flutter/AppFrameworkInfo.plist
@@ -3,7 +3,7 @@
 <plist version="1.0">
 <dict>
   <key>CFBundleDevelopmentRegion</key>
-  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <string>en</string>
   <key>CFBundleExecutable</key>
   <string>App</string>
   <key>CFBundleIdentifier</key>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/project.pbxproj
index a95a81b..474bad1 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/project.pbxproj
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/project.pbxproj
@@ -7,11 +7,9 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		647B792C24207B8900ABA501 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B792B24207B8900ABA501 /* AppDelegate.m */; };
-		647B792F24207D1600ABA501 /* DummyPlatformView.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B792E24207D1600ABA501 /* DummyPlatformView.m */; };
-		647B793224208A4200ABA501 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */; };
-		746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */; };
-		97C146F31CF9000F007C117D /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 97C146F21CF9000F007C117D /* main.m */; };
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
@@ -31,18 +29,15 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
-		647B792824207ADD00ABA501 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
-		647B792B24207B8900ABA501 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
-		647B792D24207CC400ABA501 /* DummyPlatformView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DummyPlatformView.h; sourceTree = "<group>"; };
-		647B792E24207D1600ABA501 /* DummyPlatformView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DummyPlatformView.m; sourceTree = "<group>"; };
-		647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
-		647B793124208A4200ABA501 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
-		746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
+		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
@@ -63,7 +58,7 @@
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
-				746232551E83B9DF00CC1A5E /* AppFrameworkInfo.plist */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
 				9740EEB21CF90195004384FC /* Debug.xcconfig */,
 				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
 				9740EEB31CF90195004384FC /* Generated.xcconfig */,
@@ -77,7 +72,6 @@
 				9740EEB11CF90186004384FC /* Flutter */,
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
-				CF3B75C9A7D2FA2A4C99F110 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -92,29 +86,18 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
-				647B793124208A4200ABA501 /* GeneratedPluginRegistrant.h */,
-				647B793024208A4200ABA501 /* GeneratedPluginRegistrant.m */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
 				97C147021CF9000F007C117D /* Info.plist */,
-				97C146F11CF9000F007C117D /* Supporting Files */,
-				647B792824207ADD00ABA501 /* AppDelegate.h */,
-				647B792B24207B8900ABA501 /* AppDelegate.m */,
-				647B792D24207CC400ABA501 /* DummyPlatformView.h */,
-				647B792E24207D1600ABA501 /* DummyPlatformView.m */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
 			);
 			path = Runner;
 			sourceTree = "<group>";
 		};
-		97C146F11CF9000F007C117D /* Supporting Files */ = {
-			isa = PBXGroup;
-			children = (
-				97C146F21CF9000F007C117D /* main.m */,
-			);
-			name = "Supporting Files";
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -149,6 +132,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1100;
 					};
 				};
 			};
@@ -176,7 +160,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
-				746232561E83B9DF00CC1A5E /* AppFrameworkInfo.plist in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
 				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
 				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
 			);
@@ -220,10 +204,8 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				647B792C24207B8900ABA501 /* AppDelegate.m in Sources */,
-				97C146F31CF9000F007C117D /* main.m in Sources */,
-				647B792F24207D1600ABA501 /* DummyPlatformView.m in Sources */,
-				647B793224208A4200ABA501 /* GeneratedPluginRegistrant.m in Sources */,
+				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
+				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -249,7 +231,7 @@
 /* End PBXVariantGroup section */
 
 /* Begin XCBuildConfiguration section */
-		24D15A8E21828735001BB33E /* Profile */ = {
+		249021D3217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
@@ -299,17 +281,23 @@
 			};
 			name = Profile;
 		};
-		24D15A8F21828735001BB33E /* Profile */ = {
+		249021D4217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayoutHybridComposition;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayoutHybridComposition;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Profile;
@@ -414,6 +402,8 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -424,12 +414,19 @@
 			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayoutHybridComposition;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayoutHybridComposition;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Debug;
@@ -439,12 +436,18 @@
 			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.yourcompany.platformViewsLayoutHybridComposition;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayoutHybridComposition;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
 			};
 			name = Release;
@@ -457,7 +460,7 @@
 			buildConfigurations = (
 				97C147031CF9000F007C117D /* Debug */,
 				97C147041CF9000F007C117D /* Release */,
-				24D15A8E21828735001BB33E /* Profile */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
@@ -467,7 +470,7 @@
 			buildConfigurations = (
 				97C147061CF9000F007C117D /* Debug */,
 				97C147071CF9000F007C117D /* Release */,
-				24D15A8F21828735001BB33E /* Profile */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
 			);
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 3db53b6..c87d15a 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -27,8 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
@@ -38,8 +36,8 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
+      <Testables>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -61,8 +59,6 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Profile"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.h b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.h
deleted file mode 100644
index 7d5bcd3..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.h
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <Flutter/Flutter.h>
-#import <UIKit/UIKit.h>
-
-@interface AppDelegate : FlutterAppDelegate
-
-@end
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.m b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.m
deleted file mode 100644
index 697733e..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.m
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "AppDelegate.h"
-#include "DummyPlatformView.h"
-#include "GeneratedPluginRegistrant.h"
-
-@implementation AppDelegate
-
-- (BOOL)application:(UIApplication *)application
-    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
-  [GeneratedPluginRegistrant registerWithRegistry:self];
-
-   NSObject<FlutterPluginRegistrar>* registrar =
-      [self registrarForPlugin:@"benchmarks/platform_views_layout_hybrid_composition/DummyPlatformViewPlugin"];
-
-  DummyPlatformViewFactory* dummyPlatformViewFactory = [[DummyPlatformViewFactory alloc] init];
-  [registrar registerViewFactory:dummyPlatformViewFactory
-                                withId:@"benchmarks/platform_views_layout_hybrid_composition/DummyPlatformView"
-      gestureRecognizersBlockingPolicy:FlutterPlatformViewGestureRecognizersBlockingPolicyEager];
-
-  // Override point for customization after application launch.
-  return [super application:application didFinishLaunchingWithOptions:launchOptions];
-}
-
-@end
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.swift b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d815fed
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/AppDelegate.swift
@@ -0,0 +1,17 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d36b1fa
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
new file mode 100644
index 0000000..dc9ada4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
new file mode 100644
index 0000000..28c6bf0
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@2x.png
Binary files differ
diff --git a/dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
similarity index 100%
copy from dev/benchmarks/complex_layout/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@1x.png
copy to dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
new file mode 100644
index 0000000..4cde121
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
new file mode 100644
index 0000000..d0ef06e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
new file mode 100644
index 0000000..dcdc230
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-29x29@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
new file mode 100644
index 0000000..2ccbfd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
new file mode 100644
index 0000000..c8f9ed8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-40x40@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
new file mode 100644
index 0000000..a6d6b86
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
new file mode 100644
index 0000000..75b2d16
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-60x60@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
new file mode 100644
index 0000000..c4df70d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@1x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
new file mode 100644
index 0000000..6a84f41
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
deleted file mode 100644
index 5d2bad8..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@3x.png
+++ /dev/null
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
new file mode 100644
index 0000000..d0e1f58
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
new file mode 100644
index 0000000..9da19ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Base.lproj/LaunchScreen.storyboard b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Base.lproj/LaunchScreen.storyboard
index ebf48f6..f2e259c 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Base.lproj/LaunchScreen.storyboard
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -10,13 +10,20 @@
             <objects>
                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
                     <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
-                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
                     </view>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -24,4 +31,7 @@
             <point key="canvasLocation" x="53" y="375"/>
         </scene>
     </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
 </document>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.h b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.h
deleted file mode 100644
index 6d21bf0..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <Flutter/Flutter.h>
-
-NS_ASSUME_NONNULL_BEGIN
-
-@interface DummyPlatformView : NSObject <FlutterPlatformView>
-
-- (instancetype)initWithFrame:(CGRect)frame
-               viewIdentifier:(int64_t)viewId
-                    arguments:(id _Nullable)args
-              binaryMessenger:(NSObject<FlutterBinaryMessenger>*)messenger;
-
-- (UIView*)view;
-@end
-
-@interface DummyPlatformViewFactory : NSObject <FlutterPlatformViewFactory>
-- (instancetype)initWithMessenger:(NSObject<FlutterBinaryMessenger>*)messenger;
-@end
-
-NS_ASSUME_NONNULL_END
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.m b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.m
deleted file mode 100644
index c92cd05..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/DummyPlatformView.m
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "DummyPlatformView.h"
-
-@implementation DummyPlatformViewFactory {
-  NSObject<FlutterBinaryMessenger>* _messenger;
-}
-
-- (instancetype)initWithMessenger:(NSObject<FlutterBinaryMessenger>*)messenger {
-  self = [super init];
-  if (self) {
-    _messenger = messenger;
-  }
-  return self;
-}
-
-- (NSObject<FlutterPlatformView>*)createWithFrame:(CGRect)frame
-                                   viewIdentifier:(int64_t)viewId
-                                        arguments:(id _Nullable)args {
-  return [[DummyPlatformView alloc] initWithFrame:frame
-                                   viewIdentifier:viewId
-                                        arguments:args
-                                  binaryMessenger:_messenger];
-}
-
-- (NSObject<FlutterMessageCodec>*)createArgsCodec {
-  return [FlutterStringCodec sharedInstance];
-}
-
-@end
-
-@implementation DummyPlatformView {
-  UITextView* _view;
-  FlutterMethodChannel* _channel;
-}
-
-- (instancetype)initWithFrame:(CGRect)frame
-               viewIdentifier:(int64_t)viewId
-                    arguments:(id _Nullable)args
-              binaryMessenger:(NSObject<FlutterBinaryMessenger>*)messenger {
-  if ([super init]) {
-    _view = [[UITextView alloc] initWithFrame:CGRectMake(0.0, 0.0, 250.0, 100.0)];
-    _view.textColor = UIColor.blueColor;
-    _view.backgroundColor = UIColor.lightGrayColor;
-    [_view setFont:[UIFont systemFontOfSize:52]];
-    _view.text = @"DummyPlatformView";
-  }
-  return self;
-}
-
-- (UIView*)view {
-  return _view;
-}
-
-@end
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Info.plist b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Info.plist
index 35c11f3..8d3789d 100644
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Info.plist
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Info.plist
@@ -7,19 +7,19 @@
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.yourcompany.platformViewsLayoutHybridComposition</string>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
-	<string>complex_layout</string>
+	<string>platform_views_layout_hybrid_composition</string>
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>$(FLUTTER_BUILD_NAME)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
@@ -41,9 +41,5 @@
 	</array>
 	<key>UIViewControllerBasedStatusBarAppearance</key>
 	<false/>
-	<key>io.flutter.embedded_views_preview</key>
-	<true/>
-	<key>io.flutter.metal_preview</key>
-	<true/>
 </dict>
 </plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Runner-Bridging-Header.h b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Runner-Bridging-Header.h
new file mode 100644
index 0000000..95b7baf
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/Runner-Bridging-Header.h
@@ -0,0 +1,5 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "GeneratedPluginRegistrant.h"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/main.m b/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/main.m
deleted file mode 100644
index 8607072..0000000
--- a/dev/benchmarks/platform_views_layout_hybrid_composition/ios/Runner/main.m
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import <UIKit/UIKit.h>
-#import <Flutter/Flutter.h>
-#import "AppDelegate.h"
-
-int main(int argc, char * argv[]) {
-    @autoreleasepool {
-        return UIApplicationMain(argc, argv, nil,
-                                 NSStringFromClass([AppDelegate class]));
-    }
-}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/CMakeLists.txt b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/CMakeLists.txt
new file mode 100644
index 0000000..19eac7f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "platform_views_layout_hybrid_composition")
+set(APPLICATION_ID "dev.flutter.platform_views_layout_hybrid_composition")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/CMakeLists.txt b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..e71a16d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..e0f0a47
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugins.cmake b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/main.cc b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/main.cc
new file mode 100644
index 0000000..281a29e
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/main.cc
@@ -0,0 +1,10 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.cc b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.cc
new file mode 100644
index 0000000..173690b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.cc
@@ -0,0 +1,108 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "platform_views_layout_hybrid_composition");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "platform_views_layout_hybrid_composition");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.h b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.h
new file mode 100644
index 0000000..8c66ec4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/linux/my_application.h
@@ -0,0 +1,22 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/.gitignore
new file mode 100644
index 0000000..746adbb
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/.gitignore
@@ -0,0 +1,7 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Debug.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Debug.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Release.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Release.xcconfig
new file mode 100644
index 0000000..c2efd0b
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1 @@
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.pbxproj b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..d070f31
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,572 @@
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+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Release;
+		};
+		33CC10FC2044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		33CC10FD2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Release.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
+		33CC111C2044C6BA0003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		33CC111D2044C6BA0003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..9b7fbbe
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1300"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "platform_views_layout_hybrid_composition.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout_hybrid_composition.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout_hybrid_composition.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "platform_views_layout_hybrid_composition.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/contents.xcworkspacedata b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/AppDelegate.swift b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/AppDelegate.swift
new file mode 100644
index 0000000..d080d41
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/AppDelegate.swift
@@ -0,0 +1,13 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..a2ec33f
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
new file mode 100644
index 0000000..3c4935a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
new file mode 100644
index 0000000..ed4cc16
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_128.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
new file mode 100644
index 0000000..483be61
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_16.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
new file mode 100644
index 0000000..bcbf36d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_256.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
new file mode 100644
index 0000000..9c0a652
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_32.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
new file mode 100644
index 0000000..e71a726
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
new file mode 100644
index 0000000..8a31fe2
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Base.lproj/MainMenu.xib b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Base.lproj/MainMenu.xib
new file mode 100644
index 0000000..537341a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Base.lproj/MainMenu.xib
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+    <dependencies>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
+            <connections>
+                <outlet property="delegate" destination="Voe-Tx-rLC" id="GzC-gU-4Uq"/>
+            </connections>
+        </customObject>
+        <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
+        <customObject id="-3" userLabel="Application" customClass="NSObject"/>
+        <customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModule="Runner" customModuleProvider="target">
+            <connections>
+                <outlet property="applicationMenu" destination="uQy-DD-JDr" id="XBo-yE-nKs"/>
+                <outlet property="mainFlutterWindow" destination="QvC-M9-y7g" id="gIp-Ho-8D9"/>
+            </connections>
+        </customObject>
+        <customObject id="YLy-65-1bz" customClass="NSFontManager"/>
+        <menu title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+            <items>
+                <menuItem title="APP_NAME" id="1Xt-HY-uBw">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="APP_NAME" systemMenu="apple" id="uQy-DD-JDr">
+                        <items>
+                            <menuItem title="About APP_NAME" id="5kV-Vb-QxS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="orderFrontStandardAboutPanel:" target="-1" id="Exp-CZ-Vem"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
+                            <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
+                            <menuItem title="Services" id="NMo-om-nkz">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5"/>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="4je-JR-u6R"/>
+                            <menuItem title="Hide APP_NAME" keyEquivalent="h" id="Olw-nP-bQN">
+                                <connections>
+                                    <action selector="hide:" target="-1" id="PnN-Uc-m68"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="hideOtherApplications:" target="-1" id="VT4-aY-XCT"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Show All" id="Kd2-mp-pUS">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="unhideAllApplications:" target="-1" id="Dhg-Le-xox"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="kCx-OE-vgT"/>
+                            <menuItem title="Quit APP_NAME" keyEquivalent="q" id="4sb-4s-VLi">
+                                <connections>
+                                    <action selector="terminate:" target="-1" id="Te7-pn-YzF"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Edit" id="5QF-Oa-p0T">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Edit" id="W48-6f-4Dl">
+                        <items>
+                            <menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+                                <connections>
+                                    <action selector="undo:" target="-1" id="M6e-cu-g7V"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+                                <connections>
+                                    <action selector="redo:" target="-1" id="oIA-Rs-6OD"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="WRV-NI-Exz"/>
+                            <menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+                                <connections>
+                                    <action selector="cut:" target="-1" id="YJe-68-I9s"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+                                <connections>
+                                    <action selector="copy:" target="-1" id="G1f-GL-Joy"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+                                <connections>
+                                    <action selector="paste:" target="-1" id="UvS-8e-Qdg"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+                                <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                <connections>
+                                    <action selector="pasteAsPlainText:" target="-1" id="cEh-KX-wJQ"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete" id="pa3-QI-u2k">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="delete:" target="-1" id="0Mk-Ml-PaM"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+                                <connections>
+                                    <action selector="selectAll:" target="-1" id="VNm-Mi-diN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="uyl-h8-XO2"/>
+                            <menuItem title="Find" id="4EN-yA-p0u">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Find" id="1b7-l0-nxx">
+                                    <items>
+                                        <menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="cD7-Qs-BN4"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+                                            <modifierMask key="keyEquivalentModifierMask" option="YES" command="YES"/>
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="WD3-Gg-5AJ"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="NDo-RZ-v9R"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="HOh-sY-3ay"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+                                            <connections>
+                                                <action selector="performFindPanelAction:" target="-1" id="U76-nv-p5D"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+                                            <connections>
+                                                <action selector="centerSelectionInVisibleArea:" target="-1" id="IOG-6D-g5B"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+                                    <items>
+                                        <menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+                                            <connections>
+                                                <action selector="showGuessPanel:" target="-1" id="vFj-Ks-hy3"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+                                            <connections>
+                                                <action selector="checkSpelling:" target="-1" id="fz7-VC-reM"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="bNw-od-mp5"/>
+                                        <menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleContinuousSpellChecking:" target="-1" id="7w6-Qz-0kB"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleGrammarChecking:" target="-1" id="muD-Qn-j4w"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticSpellingCorrection:" target="-1" id="2lM-Qi-WAP"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Substitutions" id="9ic-FL-obx">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+                                    <items>
+                                        <menuItem title="Show Substitutions" id="z6F-FW-3nz">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="orderFrontSubstitutionsPanel:" target="-1" id="oku-mr-iSq"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem isSeparatorItem="YES" id="gPx-C9-uUO"/>
+                                        <menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleSmartInsertDelete:" target="-1" id="3IJ-Se-DZD"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Quotes" id="hQb-2v-fYv">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticQuoteSubstitution:" target="-1" id="ptq-xd-QOA"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Dashes" id="rgM-f4-ycn">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDashSubstitution:" target="-1" id="oCt-pO-9gS"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Smart Links" id="cwL-P1-jid">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticLinkDetection:" target="-1" id="Gip-E3-Fov"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Data Detectors" id="tRr-pd-1PS">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticDataDetection:" target="-1" id="R1I-Nq-Kbl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Text Replacement" id="HFQ-gK-NFA">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="toggleAutomaticTextReplacement:" target="-1" id="DvP-Fe-Py6"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Transformations" id="2oI-Rn-ZJC">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+                                    <items>
+                                        <menuItem title="Make Upper Case" id="vmV-6d-7jI">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="uppercaseWord:" target="-1" id="sPh-Tk-edu"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Make Lower Case" id="d9M-CD-aMd">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="lowercaseWord:" target="-1" id="iUZ-b5-hil"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Capitalize" id="UEZ-Bs-lqG">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="capitalizeWord:" target="-1" id="26H-TL-nsh"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                            <menuItem title="Speech" id="xrE-MZ-jX0">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+                                    <items>
+                                        <menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="startSpeaking:" target="-1" id="654-Ng-kyl"/>
+                                            </connections>
+                                        </menuItem>
+                                        <menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+                                            <modifierMask key="keyEquivalentModifierMask"/>
+                                            <connections>
+                                                <action selector="stopSpeaking:" target="-1" id="dX8-6p-jy9"/>
+                                            </connections>
+                                        </menuItem>
+                                    </items>
+                                </menu>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="View" id="H8h-7b-M4v">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="View" id="HyV-fh-RgO">
+                        <items>
+                            <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
+                                <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
+                                <connections>
+                                    <action selector="toggleFullScreen:" target="-1" id="dU3-MA-1Rq"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+                <menuItem title="Window" id="aUF-d1-5bR">
+                    <modifierMask key="keyEquivalentModifierMask"/>
+                    <menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+                        <items>
+                            <menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+                                <connections>
+                                    <action selector="performMiniaturize:" target="-1" id="VwT-WD-YPe"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Zoom" id="R4o-n2-Eq4">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="performZoom:" target="-1" id="DIl-cC-cCs"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="eu3-7i-yIM"/>
+                            <menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="arrangeInFront:" target="-1" id="DRN-fu-gQh"/>
+                                </connections>
+                            </menuItem>
+                        </items>
+                    </menu>
+                </menuItem>
+            </items>
+            <point key="canvasLocation" x="142" y="-258"/>
+        </menu>
+        <window title="APP_NAME" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g" customClass="MainFlutterWindow" customModule="Runner" customModuleProvider="target">
+            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <rect key="contentRect" x="335" y="390" width="800" height="600"/>
+            <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1577"/>
+            <view key="contentView" wantsLayer="YES" id="EiT-Mj-1SZ">
+                <rect key="frame" x="0.0" y="0.0" width="800" height="600"/>
+                <autoresizingMask key="autoresizingMask"/>
+            </view>
+        </window>
+    </objects>
+</document>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/AppInfo.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/AppInfo.xcconfig
new file mode 100644
index 0000000..4d04463
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/AppInfo.xcconfig
@@ -0,0 +1,14 @@
+// Application-level settings for the Runner target.
+//
+// This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the
+// future. If not, the values below would default to using the project name when this becomes a
+// 'flutter create' template.
+
+// The application's name. By default this is also the title of the Flutter window.
+PRODUCT_NAME = platform_views_layout_hybrid_composition
+
+// The application's bundle identifier
+PRODUCT_BUNDLE_IDENTIFIER = dev.flutter.platformViewsLayoutHybridComposition
+
+// The copyright displayed in application information
+PRODUCT_COPYRIGHT = Copyright © 2021 dev.flutter. All rights reserved.
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Debug.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Debug.xcconfig
new file mode 100644
index 0000000..36b0fd9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Debug.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Release.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Release.xcconfig
new file mode 100644
index 0000000..dff4f49
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Release.xcconfig
@@ -0,0 +1,2 @@
+#include "../../Flutter/Flutter-Release.xcconfig"
+#include "Warnings.xcconfig"
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Warnings.xcconfig b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Warnings.xcconfig
new file mode 100644
index 0000000..42bcbf4
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Configs/Warnings.xcconfig
@@ -0,0 +1,13 @@
+WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings
+GCC_WARN_UNDECLARED_SELECTOR = YES
+CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
+CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
+CLANG_WARN_PRAGMA_PACK = YES
+CLANG_WARN_STRICT_PROTOTYPES = YES
+CLANG_WARN_COMMA = YES
+GCC_WARN_STRICT_SELECTOR_MATCH = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
+GCC_WARN_SHADOW = YES
+CLANG_WARN_UNREACHABLE_CODE = YES
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/DebugProfile.entitlements b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/DebugProfile.entitlements
new file mode 100644
index 0000000..dddb8a3
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/DebugProfile.entitlements
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.cs.allow-jit</key>
+	<true/>
+	<key>com.apple.security.network.server</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Info.plist b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Info.plist
new file mode 100644
index 0000000..4789daa
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Info.plist
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>$(PRODUCT_COPYRIGHT)</string>
+	<key>NSMainNibFile</key>
+	<string>MainMenu</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/MainFlutterWindow.swift b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/MainFlutterWindow.swift
new file mode 100644
index 0000000..a97a962
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/MainFlutterWindow.swift
@@ -0,0 +1,19 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import Cocoa
+import FlutterMacOS
+
+class MainFlutterWindow: NSWindow {
+  override func awakeFromNib() {
+    let flutterViewController = FlutterViewController.init()
+    let windowFrame = self.frame
+    self.contentViewController = flutterViewController
+    self.setFrame(windowFrame, display: true)
+
+    RegisterGeneratedPlugins(registry: flutterViewController)
+
+    super.awakeFromNib()
+  }
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Release.entitlements b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Release.entitlements
new file mode 100644
index 0000000..852fa1a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/macos/Runner/Release.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+</dict>
+</plist>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/favicon.png b/dev/benchmarks/platform_views_layout_hybrid_composition/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/favicon.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-192.png b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-512.png b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-192.png b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..b749bfef
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-192.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-512.png b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..88cfd48
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/icons/Icon-maskable-512.png
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/index.html b/dev/benchmarks/platform_views_layout_hybrid_composition/web/index.html
new file mode 100644
index 0000000..7a52742
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/index.html
@@ -0,0 +1,109 @@
+<!DOCTYPE HTML>
+<!-- Copyright 2014 The Flutter Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file. -->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="platform_views_layout_hybrid_composition">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>platform_views_layout_hybrid_composition</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing || reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/web/manifest.json b/dev/benchmarks/platform_views_layout_hybrid_composition/web/manifest.json
new file mode 100644
index 0000000..69e24bf
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/web/manifest.json
@@ -0,0 +1,35 @@
+{
+    "name": "platform_views_layout_hybrid_composition",
+    "short_name": "platform_views_layout_hybrid_composition",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/.gitignore
new file mode 100644
index 0000000..d492d0d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/.gitignore
@@ -0,0 +1,17 @@
+flutter/ephemeral/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/CMakeLists.txt b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/CMakeLists.txt
new file mode 100644
index 0000000..9e0a5ab
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/CMakeLists.txt
@@ -0,0 +1,95 @@
+cmake_minimum_required(VERSION 3.14)
+project(platform_views_layout_hybrid_composition LANGUAGES CXX)
+
+set(BINARY_NAME "platform_views_layout_hybrid_composition")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Configure build options.
+get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(IS_MULTICONFIG)
+  set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release"
+    CACHE STRING "" FORCE)
+else()
+  if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_BUILD_TYPE "Debug" CACHE
+      STRING "Flutter build mode" FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+      "Debug" "Profile" "Release")
+  endif()
+endif()
+
+set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
+set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}")
+set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}")
+
+# Use Unicode for all projects.
+add_definitions(-DUNICODE -D_UNICODE)
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_17)
+  target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100")
+  target_compile_options(${TARGET} PRIVATE /EHsc)
+  target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# Application build
+add_subdirectory("runner")
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# Support files are copied into place next to the executable, so that it can
+# run in place. This is done instead of making a separate bundle (as on Linux)
+# so that building and running from within Visual Studio will work.
+set(BUILD_BUNDLE_DIR "$<TARGET_FILE_DIR:${BINARY_NAME}>")
+# Make the "install" step default, as it's required to run.
+set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  CONFIGURATIONS Profile;Release
+  COMPONENT Runtime)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/CMakeLists.txt b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/CMakeLists.txt
new file mode 100644
index 0000000..b2e4bd8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.14)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper")
+
+# === Flutter Library ===
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "flutter_export.h"
+  "flutter_windows.h"
+  "flutter_messenger.h"
+  "flutter_plugin_registrar.h"
+  "flutter_texture_registrar.h"
+)
+list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib")
+add_dependencies(flutter flutter_assemble)
+
+# === Wrapper ===
+list(APPEND CPP_WRAPPER_SOURCES_CORE
+  "core_implementations.cc"
+  "standard_codec.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
+  "plugin_registrar.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list(APPEND CPP_WRAPPER_SOURCES_APP
+  "flutter_engine.cc"
+  "flutter_view_controller.cc"
+)
+list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+
+# Wrapper sources needed for a plugin.
+add_library(flutter_wrapper_plugin STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+)
+apply_standard_settings(flutter_wrapper_plugin)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  POSITION_INDEPENDENT_CODE ON)
+set_target_properties(flutter_wrapper_plugin PROPERTIES
+  CXX_VISIBILITY_PRESET hidden)
+target_link_libraries(flutter_wrapper_plugin PUBLIC flutter)
+target_include_directories(flutter_wrapper_plugin PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_plugin flutter_assemble)
+
+# Wrapper sources needed for the runner.
+add_library(flutter_wrapper_app STATIC
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
+apply_standard_settings(flutter_wrapper_app)
+target_link_libraries(flutter_wrapper_app PUBLIC flutter)
+target_include_directories(flutter_wrapper_app PUBLIC
+  "${WRAPPER_ROOT}/include"
+)
+add_dependencies(flutter_wrapper_app flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_")
+set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE)
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN}
+    ${CPP_WRAPPER_SOURCES_APP}
+    ${PHONY_OUTPUT}
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat"
+      windows-x64 $<CONFIG>
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+  ${CPP_WRAPPER_SOURCES_CORE}
+  ${CPP_WRAPPER_SOURCES_PLUGIN}
+  ${CPP_WRAPPER_SOURCES_APP}
+)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.cc b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..8b6d468
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,11 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.h b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..dc139d8
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugin_registrant.h
@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter/plugin_registry.h>
+
+// Registers Flutter plugins.
+void RegisterPlugins(flutter::PluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugins.cmake b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..4d10c25
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/CMakeLists.txt b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/CMakeLists.txt
new file mode 100644
index 0000000..de2d891
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/CMakeLists.txt
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+project(runner LANGUAGES CXX)
+
+add_executable(${BINARY_NAME} WIN32
+  "flutter_window.cpp"
+  "main.cpp"
+  "utils.cpp"
+  "win32_window.cpp"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+  "Runner.rc"
+  "runner.exe.manifest"
+)
+apply_standard_settings(${BINARY_NAME})
+target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX")
+target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app)
+target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")
+add_dependencies(${BINARY_NAME} flutter_assemble)
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/Runner.rc b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/Runner.rc
new file mode 100644
index 0000000..e591029
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/Runner.rc
@@ -0,0 +1,121 @@
+// Microsoft Visual C++ generated resource script.
+//
+#pragma code_page(65001)
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "winres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (United States) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE
+BEGIN
+    "#include ""winres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+#ifdef FLUTTER_BUILD_NUMBER
+#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#else
+#define VERSION_AS_NUMBER 1,0,0
+#endif
+
+#ifdef FLUTTER_BUILD_NAME
+#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#else
+#define VERSION_AS_STRING "1.0.0"
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION VERSION_AS_NUMBER
+ PRODUCTVERSION VERSION_AS_NUMBER
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS__WINDOWS32
+ FILETYPE VFT_APP
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904e4"
+        BEGIN
+            VALUE "CompanyName", "dev.flutter" "\0"
+            VALUE "FileDescription", "A new Flutter project." "\0"
+            VALUE "FileVersion", VERSION_AS_STRING "\0"
+            VALUE "InternalName", "platform_views_layout_hybrid_composition" "\0"
+            VALUE "LegalCopyright", "Copyright (C) 2021 dev.flutter. All rights reserved." "\0"
+            VALUE "OriginalFilename", "platform_views_layout_hybrid_composition.exe" "\0"
+            VALUE "ProductName", "platform_views_layout_hybrid_composition" "\0"
+            VALUE "ProductVersion", VERSION_AS_STRING "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1252
+    END
+END
+
+#endif    // English (United States) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.cpp b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.cpp
new file mode 100644
index 0000000..9cbd310
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.cpp
@@ -0,0 +1,65 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "flutter_window.h"
+
+#include <optional>
+
+#include "flutter/generated_plugin_registrant.h"
+
+FlutterWindow::FlutterWindow(const flutter::DartProject& project)
+    : project_(project) {}
+
+FlutterWindow::~FlutterWindow() {}
+
+bool FlutterWindow::OnCreate() {
+  if (!Win32Window::OnCreate()) {
+    return false;
+  }
+
+  RECT frame = GetClientArea();
+
+  // The size here must match the window dimensions to avoid unnecessary surface
+  // creation / destruction in the startup path.
+  flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
+      frame.right - frame.left, frame.bottom - frame.top, project_);
+  // Ensure that basic setup of the controller was successful.
+  if (!flutter_controller_->engine() || !flutter_controller_->view()) {
+    return false;
+  }
+  RegisterPlugins(flutter_controller_->engine());
+  SetChildContent(flutter_controller_->view()->GetNativeWindow());
+  return true;
+}
+
+void FlutterWindow::OnDestroy() {
+  if (flutter_controller_) {
+    flutter_controller_ = nullptr;
+  }
+
+  Win32Window::OnDestroy();
+}
+
+LRESULT
+FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
+                              WPARAM const wparam,
+                              LPARAM const lparam) noexcept {
+  // Give Flutter, including plugins, an opportunity to handle window messages.
+  if (flutter_controller_) {
+    std::optional<LRESULT> result =
+        flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
+                                                      lparam);
+    if (result) {
+      return *result;
+    }
+  }
+
+  switch (message) {
+    case WM_FONTCHANGE:
+      flutter_controller_->engine()->ReloadSystemFonts();
+      break;
+  }
+
+  return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.h b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.h
new file mode 100644
index 0000000..bbc5836
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/flutter_window.h
@@ -0,0 +1,37 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_FLUTTER_WINDOW_H_
+#define RUNNER_FLUTTER_WINDOW_H_
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+
+#include <memory>
+
+#include "win32_window.h"
+
+// A window that does nothing but host a Flutter view.
+class FlutterWindow : public Win32Window {
+ public:
+  // Creates a new FlutterWindow hosting a Flutter view running |project|.
+  explicit FlutterWindow(const flutter::DartProject& project);
+  virtual ~FlutterWindow();
+
+ protected:
+  // Win32Window:
+  bool OnCreate() override;
+  void OnDestroy() override;
+  LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
+                         LPARAM const lparam) noexcept override;
+
+ private:
+  // The project to run.
+  flutter::DartProject project_;
+
+  // The Flutter instance hosted by this window.
+  std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
+};
+
+#endif  // RUNNER_FLUTTER_WINDOW_H_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/main.cpp b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/main.cpp
new file mode 100644
index 0000000..4509e20
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/main.cpp
@@ -0,0 +1,47 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <flutter/dart_project.h>
+#include <flutter/flutter_view_controller.h>
+#include <windows.h>
+
+#include "flutter_window.h"
+#include "utils.h"
+
+int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
+                      _In_ wchar_t *command_line, _In_ int show_command) {
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
+
+  // Initialize COM, so that it is available for use in the library and/or
+  // plugins.
+  ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
+  flutter::DartProject project(L"data");
+
+  std::vector<std::string> command_line_arguments =
+      GetCommandLineArguments();
+
+  project.set_dart_entrypoint_arguments(std::move(command_line_arguments));
+
+  FlutterWindow window(project);
+  Win32Window::Point origin(10, 10);
+  Win32Window::Size size(1280, 720);
+  if (!window.CreateAndShow(L"platform_views_layout_hybrid_composition", origin, size)) {
+    return EXIT_FAILURE;
+  }
+  window.SetQuitOnClose(true);
+
+  ::MSG msg;
+  while (::GetMessage(&msg, nullptr, 0, 0)) {
+    ::TranslateMessage(&msg);
+    ::DispatchMessage(&msg);
+  }
+
+  ::CoUninitialize();
+  return EXIT_SUCCESS;
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resource.h b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resource.h
new file mode 100644
index 0000000..c245ff1
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resource.h
@@ -0,0 +1,20 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by Runner.rc
+//
+#define IDI_APP_ICON                    101
+
+// Next default values for new objects
+//
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        102
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resources/app_icon.ico b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resources/app_icon.ico
new file mode 100644
index 0000000..2e4cc82
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/resources/app_icon.ico
Binary files differ
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/runner.exe.manifest b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/runner.exe.manifest
new file mode 100644
index 0000000..c977c4a
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/runner.exe.manifest
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+</assembly>
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.cpp b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.cpp
new file mode 100644
index 0000000..077d1ac
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.cpp
@@ -0,0 +1,68 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "utils.h"
+
+#include <flutter_windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include <iostream>
+
+void CreateAndAttachConsole() {
+  if (::AllocConsole()) {
+    FILE *unused;
+    if (freopen_s(&unused, "CONOUT$", "w", stdout)) {
+      _dup2(_fileno(stdout), 1);
+    }
+    if (freopen_s(&unused, "CONOUT$", "w", stderr)) {
+      _dup2(_fileno(stdout), 2);
+    }
+    std::ios::sync_with_stdio();
+    FlutterDesktopResyncOutputStreams();
+  }
+}
+
+std::vector<std::string> GetCommandLineArguments() {
+  // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use.
+  int argc;
+  wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc);
+  if (argv == nullptr) {
+    return std::vector<std::string>();
+  }
+
+  std::vector<std::string> command_line_arguments;
+
+  // Skip the first argument as it's the binary name.
+  for (int i = 1; i < argc; i++) {
+    command_line_arguments.push_back(Utf8FromUtf16(argv[i]));
+  }
+
+  ::LocalFree(argv);
+
+  return command_line_arguments;
+}
+
+std::string Utf8FromUtf16(const wchar_t* utf16_string) {
+  if (utf16_string == nullptr) {
+    return std::string();
+  }
+  int target_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, nullptr, 0, nullptr, nullptr);
+  if (target_length == 0) {
+    return std::string();
+  }
+  std::string utf8_string;
+  utf8_string.resize(target_length);
+  int converted_length = ::WideCharToMultiByte(
+      CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string,
+      -1, utf8_string.data(),
+      target_length, nullptr, nullptr);
+  if (converted_length == 0) {
+    return std::string();
+  }
+  return utf8_string;
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.h b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.h
new file mode 100644
index 0000000..54414c9
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/utils.h
@@ -0,0 +1,23 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_UTILS_H_
+#define RUNNER_UTILS_H_
+
+#include <string>
+#include <vector>
+
+// Creates a console for the process, and redirects stdout and stderr to
+// it for both the runner and the Flutter library.
+void CreateAndAttachConsole();
+
+// Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string
+// encoded in UTF-8. Returns an empty std::string on failure.
+std::string Utf8FromUtf16(const wchar_t* utf16_string);
+
+// Gets the command line arguments passed in as a std::vector<std::string>,
+// encoded in UTF-8. Returns an empty std::vector<std::string> on failure.
+std::vector<std::string> GetCommandLineArguments();
+
+#endif  // RUNNER_UTILS_H_
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.cpp b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.cpp
new file mode 100644
index 0000000..20c47ea
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.cpp
@@ -0,0 +1,249 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "win32_window.h"
+
+#include <flutter_windows.h>
+
+#include "resource.h"
+
+namespace {
+
+constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW";
+
+// The number of Win32Window objects that currently exist.
+static int g_active_window_count = 0;
+
+using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd);
+
+// Scale helper to convert logical scaler values to physical using passed in
+// scale factor
+int Scale(int source, double scale_factor) {
+  return static_cast<int>(source * scale_factor);
+}
+
+// Dynamically loads the |EnableNonClientDpiScaling| from the User32 module.
+// This API is only needed for PerMonitor V1 awareness mode.
+void EnableFullDpiSupportIfAvailable(HWND hwnd) {
+  HMODULE user32_module = LoadLibraryA("User32.dll");
+  if (!user32_module) {
+    return;
+  }
+  auto enable_non_client_dpi_scaling =
+      reinterpret_cast<EnableNonClientDpiScaling*>(
+          GetProcAddress(user32_module, "EnableNonClientDpiScaling"));
+  if (enable_non_client_dpi_scaling != nullptr) {
+    enable_non_client_dpi_scaling(hwnd);
+    FreeLibrary(user32_module);
+  }
+}
+
+}  // namespace
+
+// Manages the Win32Window's window class registration.
+class WindowClassRegistrar {
+ public:
+  ~WindowClassRegistrar() = default;
+
+  // Returns the singleton registar instance.
+  static WindowClassRegistrar* GetInstance() {
+    if (!instance_) {
+      instance_ = new WindowClassRegistrar();
+    }
+    return instance_;
+  }
+
+  // Returns the name of the window class, registering the class if it hasn't
+  // previously been registered.
+  const wchar_t* GetWindowClass();
+
+  // Unregisters the window class. Should only be called if there are no
+  // instances of the window.
+  void UnregisterWindowClass();
+
+ private:
+  WindowClassRegistrar() = default;
+
+  static WindowClassRegistrar* instance_;
+
+  bool class_registered_ = false;
+};
+
+WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr;
+
+const wchar_t* WindowClassRegistrar::GetWindowClass() {
+  if (!class_registered_) {
+    WNDCLASS window_class{};
+    window_class.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    window_class.lpszClassName = kWindowClassName;
+    window_class.style = CS_HREDRAW | CS_VREDRAW;
+    window_class.cbClsExtra = 0;
+    window_class.cbWndExtra = 0;
+    window_class.hInstance = GetModuleHandle(nullptr);
+    window_class.hIcon =
+        LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON));
+    window_class.hbrBackground = 0;
+    window_class.lpszMenuName = nullptr;
+    window_class.lpfnWndProc = Win32Window::WndProc;
+    RegisterClass(&window_class);
+    class_registered_ = true;
+  }
+  return kWindowClassName;
+}
+
+void WindowClassRegistrar::UnregisterWindowClass() {
+  UnregisterClass(kWindowClassName, nullptr);
+  class_registered_ = false;
+}
+
+Win32Window::Win32Window() {
+  ++g_active_window_count;
+}
+
+Win32Window::~Win32Window() {
+  --g_active_window_count;
+  Destroy();
+}
+
+bool Win32Window::CreateAndShow(const std::wstring& title,
+                                const Point& origin,
+                                const Size& size) {
+  Destroy();
+
+  const wchar_t* window_class =
+      WindowClassRegistrar::GetInstance()->GetWindowClass();
+
+  const POINT target_point = {static_cast<LONG>(origin.x),
+                              static_cast<LONG>(origin.y)};
+  HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST);
+  UINT dpi = FlutterDesktopGetDpiForMonitor(monitor);
+  double scale_factor = dpi / 96.0;
+
+  HWND window = CreateWindow(
+      window_class, title.c_str(), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+      Scale(origin.x, scale_factor), Scale(origin.y, scale_factor),
+      Scale(size.width, scale_factor), Scale(size.height, scale_factor),
+      nullptr, nullptr, GetModuleHandle(nullptr), this);
+
+  if (!window) {
+    return false;
+  }
+
+  return OnCreate();
+}
+
+// static
+LRESULT CALLBACK Win32Window::WndProc(HWND const window,
+                                      UINT const message,
+                                      WPARAM const wparam,
+                                      LPARAM const lparam) noexcept {
+  if (message == WM_NCCREATE) {
+    auto window_struct = reinterpret_cast<CREATESTRUCT*>(lparam);
+    SetWindowLongPtr(window, GWLP_USERDATA,
+                     reinterpret_cast<LONG_PTR>(window_struct->lpCreateParams));
+
+    auto that = static_cast<Win32Window*>(window_struct->lpCreateParams);
+    EnableFullDpiSupportIfAvailable(window);
+    that->window_handle_ = window;
+  } else if (Win32Window* that = GetThisFromHandle(window)) {
+    return that->MessageHandler(window, message, wparam, lparam);
+  }
+
+  return DefWindowProc(window, message, wparam, lparam);
+}
+
+LRESULT
+Win32Window::MessageHandler(HWND hwnd,
+                            UINT const message,
+                            WPARAM const wparam,
+                            LPARAM const lparam) noexcept {
+  switch (message) {
+    case WM_DESTROY:
+      window_handle_ = nullptr;
+      Destroy();
+      if (quit_on_close_) {
+        PostQuitMessage(0);
+      }
+      return 0;
+
+    case WM_DPICHANGED: {
+      auto newRectSize = reinterpret_cast<RECT*>(lparam);
+      LONG newWidth = newRectSize->right - newRectSize->left;
+      LONG newHeight = newRectSize->bottom - newRectSize->top;
+
+      SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth,
+                   newHeight, SWP_NOZORDER | SWP_NOACTIVATE);
+
+      return 0;
+    }
+    case WM_SIZE: {
+      RECT rect = GetClientArea();
+      if (child_content_ != nullptr) {
+        // Size and position the child window.
+        MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left,
+                   rect.bottom - rect.top, TRUE);
+      }
+      return 0;
+    }
+
+    case WM_ACTIVATE:
+      if (child_content_ != nullptr) {
+        SetFocus(child_content_);
+      }
+      return 0;
+  }
+
+  return DefWindowProc(window_handle_, message, wparam, lparam);
+}
+
+void Win32Window::Destroy() {
+  OnDestroy();
+
+  if (window_handle_) {
+    DestroyWindow(window_handle_);
+    window_handle_ = nullptr;
+  }
+  if (g_active_window_count == 0) {
+    WindowClassRegistrar::GetInstance()->UnregisterWindowClass();
+  }
+}
+
+Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
+  return reinterpret_cast<Win32Window*>(
+      GetWindowLongPtr(window, GWLP_USERDATA));
+}
+
+void Win32Window::SetChildContent(HWND content) {
+  child_content_ = content;
+  SetParent(content, window_handle_);
+  RECT frame = GetClientArea();
+
+  MoveWindow(content, frame.left, frame.top, frame.right - frame.left,
+             frame.bottom - frame.top, true);
+
+  SetFocus(child_content_);
+}
+
+RECT Win32Window::GetClientArea() {
+  RECT frame;
+  GetClientRect(window_handle_, &frame);
+  return frame;
+}
+
+HWND Win32Window::GetHandle() {
+  return window_handle_;
+}
+
+void Win32Window::SetQuitOnClose(bool quit_on_close) {
+  quit_on_close_ = quit_on_close;
+}
+
+bool Win32Window::OnCreate() {
+  // No-op; provided for subclasses.
+  return true;
+}
+
+void Win32Window::OnDestroy() {
+  // No-op; provided for subclasses.
+}
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.h b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.h
new file mode 100644
index 0000000..1dab177
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/windows/runner/win32_window.h
@@ -0,0 +1,102 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RUNNER_WIN32_WINDOW_H_
+#define RUNNER_WIN32_WINDOW_H_
+
+#include <windows.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+// A class abstraction for a high DPI-aware Win32 Window. Intended to be
+// inherited from by classes that wish to specialize with custom
+// rendering and input handling
+class Win32Window {
+ public:
+  struct Point {
+    unsigned int x;
+    unsigned int y;
+    Point(unsigned int x, unsigned int y) : x(x), y(y) {}
+  };
+
+  struct Size {
+    unsigned int width;
+    unsigned int height;
+    Size(unsigned int width, unsigned int height)
+        : width(width), height(height) {}
+  };
+
+  Win32Window();
+  virtual ~Win32Window();
+
+  // Creates and shows a win32 window with |title| and position and size using
+  // |origin| and |size|. New windows are created on the default monitor. Window
+  // sizes are specified to the OS in physical pixels, hence to ensure a
+  // consistent size to will treat the width height passed in to this function
+  // as logical pixels and scale to appropriate for the default monitor. Returns
+  // true if the window was created successfully.
+  bool CreateAndShow(const std::wstring& title,
+                     const Point& origin,
+                     const Size& size);
+
+  // Release OS resources associated with window.
+  void Destroy();
+
+  // Inserts |content| into the window tree.
+  void SetChildContent(HWND content);
+
+  // Returns the backing Window handle to enable clients to set icon and other
+  // window properties. Returns nullptr if the window has been destroyed.
+  HWND GetHandle();
+
+  // If true, closing this window will quit the application.
+  void SetQuitOnClose(bool quit_on_close);
+
+  // Return a RECT representing the bounds of the current client area.
+  RECT GetClientArea();
+
+ protected:
+  // Processes and route salient window messages for mouse handling,
+  // size change and DPI. Delegates handling of these to member overloads that
+  // inheriting classes can handle.
+  virtual LRESULT MessageHandler(HWND window,
+                                 UINT const message,
+                                 WPARAM const wparam,
+                                 LPARAM const lparam) noexcept;
+
+  // Called when CreateAndShow is called, allowing subclass window-related
+  // setup. Subclasses should return false if setup fails.
+  virtual bool OnCreate();
+
+  // Called when Destroy is called.
+  virtual void OnDestroy();
+
+ private:
+  friend class WindowClassRegistrar;
+
+  // OS callback called by message pump. Handles the WM_NCCREATE message which
+  // is passed when the non-client area is being created and enables automatic
+  // non-client DPI scaling so that the non-client area automatically
+  // responsponds to changes in DPI. All other messages are handled by
+  // MessageHandler.
+  static LRESULT CALLBACK WndProc(HWND const window,
+                                  UINT const message,
+                                  WPARAM const wparam,
+                                  LPARAM const lparam) noexcept;
+
+  // Retrieves a class instance pointer for |window|
+  static Win32Window* GetThisFromHandle(HWND const window) noexcept;
+
+  bool quit_on_close_ = false;
+
+  // window handle for top level window.
+  HWND window_handle_ = nullptr;
+
+  // window handle for hosted content.
+  HWND child_content_ = nullptr;
+};
+
+#endif  // RUNNER_WIN32_WINDOW_H_
diff --git a/dev/benchmarks/test_apps/stocks/android/build.gradle b/dev/benchmarks/test_apps/stocks/android/build.gradle
index c9049d0..f7ec097 100644
--- a/dev/benchmarks/test_apps/stocks/android/build.gradle
+++ b/dev/benchmarks/test_apps/stocks/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {
diff --git a/dev/bots/analyze.dart b/dev/bots/analyze.dart
index a642f49..4ea1a6d 100644
--- a/dev/bots/analyze.dart
+++ b/dev/bots/analyze.dart
@@ -320,12 +320,12 @@
 
 Future<void> verifyNoMissingLicense(String workingDirectory, { bool checkMinimums = true }) async {
   final int? overrideMinimumMatches = checkMinimums ? null : 0;
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'dart', overrideMinimumMatches ?? 2000, _generateLicense('// '));
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'java', overrideMinimumMatches ?? 39, _generateLicense('// '));
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'h', overrideMinimumMatches ?? 30, _generateLicense('// '));
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'm', overrideMinimumMatches ?? 30, _generateLicense('// '));
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'swift', overrideMinimumMatches ?? 10, _generateLicense('// '));
-  await _verifyNoMissingLicenseForExtension(workingDirectory, 'gradle', overrideMinimumMatches ?? 80, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'dart', overrideMinimumMatches ?? 3000, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'java', overrideMinimumMatches ?? 30, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'h', overrideMinimumMatches ?? 60, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'm', overrideMinimumMatches ?? 40, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'swift', overrideMinimumMatches ?? 40, _generateLicense('// '));
+  await _verifyNoMissingLicenseForExtension(workingDirectory, 'gradle', overrideMinimumMatches ?? 100, _generateLicense('// '));
   await _verifyNoMissingLicenseForExtension(workingDirectory, 'gn', overrideMinimumMatches ?? 0, _generateLicense('# '));
   await _verifyNoMissingLicenseForExtension(workingDirectory, 'sh', overrideMinimumMatches ?? 1, '#!/usr/bin/env bash\n${_generateLicense('# ')}');
   await _verifyNoMissingLicenseForExtension(workingDirectory, 'bat', overrideMinimumMatches ?? 1, '@ECHO off\n${_generateLicense('REM ')}');
diff --git a/dev/manual_tests/android/build.gradle b/dev/manual_tests/android/build.gradle
index c9049d0..f7ec097 100644
--- a/dev/manual_tests/android/build.gradle
+++ b/dev/manual_tests/android/build.gradle
@@ -34,8 +34,6 @@
 
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 
     dependencyLocking {