cc: Various code safety improvements in video compositing code.

cc/test/fake_video_frame_provider.h

Index: cc/test/fake_video_frame_provider.h
diff --git a/cc/test/fake_video_frame_provider.h b/cc/test/fake_video_frame_provider.h
index 50b6b2777df195bf18e56653b87a5b4886048b55..12a27a7c5e7cc146976de9dcbeb796f473d2dbc5 100644
--- a/cc/test/fake_video_frame_provider.h
+++ b/cc/test/fake_video_frame_provider.h
@@ -26,6 +26,8 @@ class FakeVideoFrameProvider : public VideoFrameProvider {
     frame_ = frame;
   }
 
+  void SendDidReceiveFrame();

[danakj, 2015/03/24 17:38:01]

The VLI::SetNeedsRedraw() method didn't go anywhere, so this test change isn't
needed is it?

[sunnyps, 2015/03/24 19:43:38]

Done.

+
  private:
   scoped_refptr<media::VideoFrame> frame_;
   Client* client_;