[video_player] Update texture on seekTo (#2758)

diff --git a/packages/video_player/video_player/CHANGELOG.md b/packages/video_player/video_player/CHANGELOG.md
index b87ac4b..435484b 100644
--- a/packages/video_player/video_player/CHANGELOG.md
+++ b/packages/video_player/video_player/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.2.10
+
+* iOS: Updates texture on `seekTo`.
+
 ## 2.2.9
 
 * Adds compatibility with `video_player_platform_interface` 5.0, which does not

diff --git a/packages/video_player/video_player/example/ios/Podfile b/packages/video_player/video_player/example/ios/Podfile
index 3924e59..fe37427 100644
--- a/packages/video_player/video_player/example/ios/Podfile
+++ b/packages/video_player/video_player/example/ios/Podfile

@@ -31,6 +31,7 @@
   flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
   target 'RunnerTests' do
     inherit! :search_paths
+    pod 'OCMock', '3.5'
   end
 end
 

diff --git a/packages/video_player/video_player/example/ios/RunnerTests/VideoPlayerTests.m b/packages/video_player/video_player/example/ios/RunnerTests/VideoPlayerTests.m
index 890866f..deea833 100644
--- a/packages/video_player/video_player/example/ios/RunnerTests/VideoPlayerTests.m
+++ b/packages/video_player/video_player/example/ios/RunnerTests/VideoPlayerTests.m

@@ -5,14 +5,37 @@
 @import video_player;
 @import XCTest;
 
+#import <OCMock/OCMock.h>
+
 @interface VideoPlayerTests : XCTestCase
 @end
 
 @implementation VideoPlayerTests
 
 - (void)testPlugin {
-  FLTVideoPlayerPlugin* plugin = [[FLTVideoPlayerPlugin alloc] init];
+  FLTVideoPlayerPlugin *plugin = [[FLTVideoPlayerPlugin alloc] init];
   XCTAssertNotNil(plugin);
 }
 
+- (void)testSeekToInvokesTextureFrameAvailableOnTextureRegistry {
+  NSObject<FlutterTextureRegistry> *mockTextureRegistry =
+      OCMProtocolMock(@protocol(FlutterTextureRegistry));
+  NSObject<FlutterPluginRegistry> *registry =
+      (NSObject<FlutterPluginRegistry> *)[[UIApplication sharedApplication] delegate];
+  NSObject<FlutterPluginRegistrar> *registrar =
+      [registry registrarForPlugin:@"TEST_FLTVideoPlayerPlugin"];
+  NSObject<FlutterPluginRegistrar> *partialRegistrar = OCMPartialMock(registrar);
+  OCMStub([partialRegistrar textures]).andReturn(mockTextureRegistry);
+  [FLTVideoPlayerPlugin registerWithRegistrar:partialRegistrar];
+  FLTVideoPlayerPlugin<FLTVideoPlayerApi> *videoPlayerPlugin =
+      (FLTVideoPlayerPlugin<FLTVideoPlayerApi> *)[[FLTVideoPlayerPlugin alloc]
+          initWithRegistrar:partialRegistrar];
+  FLTPositionMessage *message = [[FLTPositionMessage alloc] init];
+  message.textureId = @101;
+  message.position = @0;
+  FlutterError *error;
+  [videoPlayerPlugin seekTo:message error:&error];
+  OCMVerify([mockTextureRegistry textureFrameAvailable:message.textureId.intValue]);
+}
+
 @end

diff --git a/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.h b/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.h
index 6c9d914..2514aee 100644
--- a/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.h
+++ b/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.h

@@ -5,4 +5,5 @@
 #import <Flutter/Flutter.h>
 
 @interface FLTVideoPlayerPlugin : NSObject <FlutterPlugin>
+- (instancetype)initWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar;
 @end

diff --git a/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.m b/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.m
index 78626eb..b581cd8 100644
--- a/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.m
+++ b/packages/video_player/video_player/ios/Classes/FLTVideoPlayerPlugin.m

@@ -616,6 +616,7 @@
 - (void)seekTo:(FLTPositionMessage*)input error:(FlutterError**)error {
   FLTVideoPlayer* player = _players[input.textureId];
   [player seekTo:[input.position intValue]];
+  [_registry textureFrameAvailable:input.textureId.intValue];
 }
 
 - (void)pause:(FLTTextureMessage*)input error:(FlutterError**)error {

diff --git a/packages/video_player/video_player/pubspec.yaml b/packages/video_player/video_player/pubspec.yaml
index 3ae9c0d..fcb6b84 100644
--- a/packages/video_player/video_player/pubspec.yaml
+++ b/packages/video_player/video_player/pubspec.yaml

@@ -3,7 +3,7 @@
   widgets on Android, iOS, and web.
 repository: https://github.com/flutter/plugins/tree/master/packages/video_player/video_player
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+video_player%22
-version: 2.2.9
+version: 2.2.10
 
 environment:
   sdk: ">=2.14.0 <3.0.0"