Add video frame refresh to MediaStream and VideoCapture stacks.

content/renderer/media/media_stream_video_renderer_sink.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_MEDIA_RTC_VIDEO_RENDERER_H_
 #define CONTENT_RENDERER_MEDIA_RTC_VIDEO_RENDERER_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 12 matching lines @@
 
 namespace media {
 class GpuVideoAcceleratorFactories;
 }  // namespace media
 
 namespace content {
 
 // MediaStreamVideoRendererSink is a VideoFrameProvider designed for rendering
 // Video MediaStreamTracks [1], MediaStreamVideoRendererSink implements
 // MediaStreamVideoSink in order to render video frames provided from a
-// MediaStreamVideoTrack, to which it AddToVideoTrack()s itself when the
-// VideoFrameProvider is Start()ed and RemoveFromVideoTrack()s itself when the
-// latter is Stop()ed.
+// MediaStreamVideoTrack, to which it connects itself when the
+// VideoFrameProvider is Start()ed, and disconnects itself when the latter is
+// Stop()ed.
 //
 // [1] http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastreamtrack
 //
 // TODO(wuchengli): Add unit test. See the link below for reference.
 // http://src.chromium.org/viewvc/chrome/trunk/src/content/renderer/media/rtc_vi
 // deo_decoder_unittest.cc?revision=180591&view=markup
 class CONTENT_EXPORT MediaStreamVideoRendererSink
     : NON_EXPORTED_BASE(public VideoFrameProvider),
       NON_EXPORTED_BASE(public MediaStreamVideoSink) {
  public:
@@ skipping 47 matching lines @@
   const scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
 
   base::WeakPtrFactory<MediaStreamVideoRendererSink> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoRendererSink);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_RTC_VIDEO_RENDERER_H_