typo fix on the FLUTTER_STORAGE_BASE_URL usage (#56685)

diff --git a/dev/devicelab/bin/tasks/android_engine_dependency_proxy_test.dart b/dev/devicelab/bin/tasks/android_engine_dependency_proxy_test.dart
index c5297de..e5e1665 100644
--- a/dev/devicelab/bin/tasks/android_engine_dependency_proxy_test.dart
+++ b/dev/devicelab/bin/tasks/android_engine_dependency_proxy_test.dart
@@ -58,7 +58,7 @@
           gradlewExecutable,
           <String>['printEngineMavenUrl', '-q'],
           environment: <String, String>{
-            'FLUTTER_STORAGE_BASE_URL': 'my.special.proxy',
+            'FLUTTER_STORAGE_BASE_URL': 'https://my.special.proxy',
           }
         );
 
diff --git a/packages/flutter_tools/gradle/aar_init_script.gradle b/packages/flutter_tools/gradle/aar_init_script.gradle
index 003979f..06b0f62 100644
--- a/packages/flutter_tools/gradle/aar_init_script.gradle
+++ b/packages/flutter_tools/gradle/aar_init_script.gradle
@@ -53,12 +53,12 @@
             "See: https://github.com/flutter/flutter/issues/40866")
     }
 
-    String storageUrl = System.getenv('FLUTTER_STORAGE_BASE_URL') ?: "storage.googleapis.com"
+    String storageUrl = System.getenv('FLUTTER_STORAGE_BASE_URL') ?: "https://storage.googleapis.com"
     // This is a Flutter plugin project. Plugin projects don't apply the Flutter Gradle plugin,
     // as a result, add the dependency on the embedding.
     project.repositories {
         maven {
-            url "https://$storageUrl/download.flutter.io"
+            url "$storageUrl/download.flutter.io"
         }
     }
     String engineVersion = Paths.get(getFlutterRoot(project), "bin", "internal", "engine.version")
diff --git a/packages/flutter_tools/gradle/flutter.gradle b/packages/flutter_tools/gradle/flutter.gradle
index 115aeae..3c223e9 100644
--- a/packages/flutter_tools/gradle/flutter.gradle
+++ b/packages/flutter_tools/gradle/flutter.gradle
@@ -41,7 +41,7 @@
 apply plugin: FlutterPlugin
 
 class FlutterPlugin implements Plugin<Project> {
-    private static final String DEFAULT_MAVEN_HOST = "storage.googleapis.com";
+    private static final String DEFAULT_MAVEN_HOST = "https://storage.googleapis.com";
 
     // The platforms that can be passed to the `--Ptarget-platform` flag.
     private static final String PLATFORM_ARM32  = "android-arm";
@@ -203,7 +203,7 @@
         String hostedRepository = System.env.FLUTTER_STORAGE_BASE_URL ?: DEFAULT_MAVEN_HOST
         String repository = useLocalEngine()
             ? project.property('local-engine-repo')
-            : "https://$hostedRepository/download.flutter.io"
+            : "$hostedRepository/download.flutter.io"
         project.rootProject.allprojects {
             repositories {
                 maven {
diff --git a/packages/flutter_tools/gradle/resolve_dependencies.gradle b/packages/flutter_tools/gradle/resolve_dependencies.gradle
index 99407d5..508fb49 100644
--- a/packages/flutter_tools/gradle/resolve_dependencies.gradle
+++ b/packages/flutter_tools/gradle/resolve_dependencies.gradle
@@ -14,13 +14,13 @@
 
 import java.nio.file.Paths
 
-String storageUrl = System.getenv('FLUTTER_STORAGE_BASE_URL') ?: "storage.googleapis.com"
+String storageUrl = System.getenv('FLUTTER_STORAGE_BASE_URL') ?: "https://storage.googleapis.com"
 
 repositories {
     google()
     jcenter()
     maven {
-        url "https://$storageUrl/download.flutter.io"
+        url "$storageUrl/download.flutter.io"
     }
 }
 
diff --git a/packages/flutter_tools/lib/src/android/gradle.dart b/packages/flutter_tools/lib/src/android/gradle.dart
index 09a517d..c0a39f7 100644
--- a/packages/flutter_tools/lib/src/android/gradle.dart
+++ b/packages/flutter_tools/lib/src/android/gradle.dart
@@ -664,13 +664,13 @@
   1. Open ${fileSystem.path.join('<host>', 'app', 'build.gradle')}
   2. Ensure you have the repositories configured, otherwise add them:
 
-      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "storage.googleapis.com"
+      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "https://storage.googleapis.com"
       repositories {
         maven {
             url '${repoDirectory.path}'
         }
         maven {
-            url 'https://\$storageUrl/download.flutter.io'
+            url '\$storageUrl/download.flutter.io'
         }
       }
 
diff --git a/packages/flutter_tools/test/general.shard/android/gradle_test.dart b/packages/flutter_tools/test/general.shard/android/gradle_test.dart
index 7d76f82..e094fa9 100644
--- a/packages/flutter_tools/test/general.shard/android/gradle_test.dart
+++ b/packages/flutter_tools/test/general.shard/android/gradle_test.dart
@@ -2324,13 +2324,13 @@
           '  1. Open <host>/app/build.gradle\n'
           '  2. Ensure you have the repositories configured, otherwise add them:\n'
           '\n'
-          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "storage.googleapis.com"\n'
+          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "https://storage.googleapis.com"\n'
           '      repositories {\n'
           '        maven {\n'
           "            url 'build/'\n"
           '        }\n'
           '        maven {\n'
-          "            url 'https://\$storageUrl/download.flutter.io'\n"
+          "            url '\$storageUrl/download.flutter.io'\n"
           '        }\n'
           '      }\n'
           '\n'
@@ -2375,13 +2375,13 @@
           '  1. Open <host>/app/build.gradle\n'
           '  2. Ensure you have the repositories configured, otherwise add them:\n'
           '\n'
-          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "storage.googleapis.com"\n'
+          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "https://storage.googleapis.com"\n'
           '      repositories {\n'
           '        maven {\n'
           "            url 'build/'\n"
           '        }\n'
           '        maven {\n'
-          "            url 'https://\$storageUrl/download.flutter.io'\n"
+          "            url '\$storageUrl/download.flutter.io'\n"
           '        }\n'
           '      }\n'
           '\n'
@@ -2413,13 +2413,13 @@
           '  1. Open <host>/app/build.gradle\n'
           '  2. Ensure you have the repositories configured, otherwise add them:\n'
           '\n'
-          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "storage.googleapis.com"\n'
+          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "https://storage.googleapis.com"\n'
           '      repositories {\n'
           '        maven {\n'
           "            url 'build/'\n"
           '        }\n'
           '        maven {\n'
-          "            url 'https://\$storageUrl/download.flutter.io'\n"
+          "            url '\$storageUrl/download.flutter.io'\n"
           '        }\n'
           '      }\n'
           '\n'
@@ -2452,13 +2452,13 @@
           '  1. Open <host>/app/build.gradle\n'
           '  2. Ensure you have the repositories configured, otherwise add them:\n'
           '\n'
-          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "storage.googleapis.com"\n'
+          '      String storageUrl = System.env.FLUTTER_STORAGE_BASE_URL ?: "https://storage.googleapis.com"\n'
           '      repositories {\n'
           '        maven {\n'
           "            url 'build/'\n"
           '        }\n'
           '        maven {\n'
-          "            url 'https://\$storageUrl/download.flutter.io'\n"
+          "            url '\$storageUrl/download.flutter.io'\n"
           '        }\n'
           '      }\n'
           '\n'