Connect the new video rendering path to the compositor.

media/base/video_renderer_sink.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_VIDEO_RENDERER_SINK_H_
 #define MEDIA_BASE_VIDEO_RENDERER_SINK_H_
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
@@ skipping 38 matching lines @@
   // liberally if no new frames are expected.
   virtual void Stop() = 0;
 
   // Instead of using a callback driven rendering path, allow clients to paint
   // frames as they see fit without regard for the compositor.
   // TODO(dalecurtis): This should be nuked once experiments show the new path
   // is amazing and the old path is not! http://crbug.com/439548
   virtual void PaintFrameUsingOldRenderingPath(
       const scoped_refptr<VideoFrame>& frame) = 0;
 
+  // TODO(dalecurtis): We may need OnSizeChanged() and OnOpacityChanged()
+  // methods on this interface if background rendering is handled inside of
+  // the media layer instead of by VideoFrameCompositor.
+
   virtual ~VideoRendererSink() {}
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_RENDERER_SINK_H_