Moves video frame callbacks from VideoFrameCompositor to Renderer.

media/renderers/video_renderer_impl.h

Index: media/renderers/video_renderer_impl.h
diff --git a/media/renderers/video_renderer_impl.h b/media/renderers/video_renderer_impl.h
index 6a58949db8a31b309b7216f0529c601cc1014ee7..a21bc2808268d872abfbf5fe4c47f62c6046b096 100644
--- a/media/renderers/video_renderer_impl.h
+++ b/media/renderers/video_renderer_impl.h
@@ -95,6 +95,8 @@ class MEDIA_EXPORT VideoRendererImpl
   void OnStatisticsUpdate(const PipelineStatistics& stats);
   void OnBufferingStateChange(BufferingState state);
   void OnWaitingForDecryptionKey();
+  void OnVideoNaturalSizeChange(const gfx::Size& size);
+  void OnVideoOpacityChange(bool opaque);
 
   // Callback for |video_frame_stream_| to deliver decoded video frames and
   // report video decoding status. If a frame is available the planes will be
@@ -285,6 +287,12 @@ class MEDIA_EXPORT VideoRendererImpl
   // call.
   int64_t last_video_memory_usage_;
 
+  // Indicates if Render() has been called yet.
+  bool have_renderered_frames_;
+  // Tracks last frame properties to detect and notify client of any changes.
+  gfx::Size last_frame_natural_size_;
+  bool last_frame_opaque_;
+
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<VideoRendererImpl> weak_factory_;