Support casting for embedded YT videos

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 9fb5e448ff08deeb827fc35da0e53abc3b93f3e4..d1a0d6ea37cde8558d9aaeb71f67a11f229865c1 100644
--- a/content/renderer/media/android/renderer_media_player_manager.h
+++ b/content/renderer/media/android/renderer_media_player_manager.h
@@ -51,6 +51,9 @@ class RendererMediaPlayerManager : public RenderViewObserver {
                   const GURL& first_party_for_cookies,
                   int demuxer_client_id);
 
+  // Sets the url of the frame containing the player with the given player_id
+  void SetPlayerFrameUrl(int player_id, const GURL& frame_url);
+
   // Starts the player.
   void Start(int player_id);