Fix fullscreen video race condition.

content/renderer/media/android/renderer_media_player_manager.h

Index: content/renderer/media/android/renderer_media_player_manager.h
diff --git a/content/renderer/media/android/renderer_media_player_manager.h b/content/renderer/media/android/renderer_media_player_manager.h
index b68f3940d8e590b0018bf332e3dbbdd0abc0138f..614b875355ea42d14ad1a31240fc6066e1070b30 100644
--- a/content/renderer/media/android/renderer_media_player_manager.h
+++ b/content/renderer/media/android/renderer_media_player_manager.h
@@ -71,7 +71,7 @@ class RendererMediaPlayerManager : public RenderViewObserver {
   void DestroyPlayer(int player_id);
 
   // Requests the player to enter fullscreen.
-  void EnterFullscreen(int player_id);
+  void EnterFullscreen(int player_id, blink::WebFrame* frame);
 
   // Requests the player to exit fullscreen.
   void ExitFullscreen(int player_id);
@@ -123,6 +123,9 @@ class RendererMediaPlayerManager : public RenderViewObserver {
   // Checks whether the Webframe is in fullscreen.
   bool IsInFullscreen(blink::WebFrame* frame);
 
+  // True if a newly created media player should enter fullscreen.
+  bool ShouldEnterFullscreen(blink::WebFrame* frame);
+
   // Gets the pointer to WebMediaPlayerAndroid given the |player_id|.
   WebMediaPlayerAndroid* GetMediaPlayer(int player_id);
 
@@ -183,6 +186,9 @@ class RendererMediaPlayerManager : public RenderViewObserver {
   // WebFrame of the fullscreen video.
   blink::WebFrame* fullscreen_frame_;
 
+  // WebFrame of pending fullscreen request.
+  blink::WebFrame* pending_fullscreen_frame_;
+
   DISALLOW_COPY_AND_ASSIGN(RendererMediaPlayerManager);
 };