Cast: deliver video frames on the IO thread

content/renderer/media/webrtc/webrtc_video_track_adapter.h

Index: content/renderer/media/webrtc/webrtc_video_track_adapter.h
diff --git a/content/renderer/media/webrtc/webrtc_video_track_adapter.h b/content/renderer/media/webrtc/webrtc_video_track_adapter.h
index 6b649bab0c26ca65ddb2c40e5716151991871a50..1a9be6074db24ec3b0d9056544c9bd1221060d47 100644
--- a/content/renderer/media/webrtc/webrtc_video_track_adapter.h
+++ b/content/renderer/media/webrtc/webrtc_video_track_adapter.h
@@ -7,7 +7,7 @@
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
-#include "content/public/renderer/media_stream_sink.h"
+#include "content/public/renderer/media_stream_video_sink.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/webrtc/webrtc_video_capturer_adapter.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
@@ -27,7 +27,7 @@ class MediaStreamVideoTrack;
 // added to an RTCPeerConnection object.
 // Instances of this class is owned by the WebRtcMediaStreamAdapter object that
 // created it.
-class WebRtcVideoTrackAdapter : public MediaStreamSink {
+class WebRtcVideoTrackAdapter : public MediaStreamVideoSink {
  public:
   WebRtcVideoTrackAdapter(const blink::WebMediaStreamTrack& track,
                           MediaStreamDependencyFactory* factory);