Delete FrameInput method and FrameInputWrapper class.

talk/app/webrtc/videotrack.cc

 /*
  * libjingle
  * Copyright 2011 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 40 matching lines @@
 }
 
 void VideoTrack::AddRenderer(VideoRendererInterface* renderer) {
   renderers_.AddRenderer(renderer);
 }
 
 void VideoTrack::RemoveRenderer(VideoRendererInterface* renderer) {
   renderers_.RemoveRenderer(renderer);
 }
 
+rtc::VideoSinkInterface<cricket::VideoFrame>* VideoTrack::GetSink() {
+  return &renderers_;
+}
+
 bool VideoTrack::set_enabled(bool enable) {
   renderers_.SetEnabled(enable);
   return MediaStreamTrack<VideoTrackInterface>::set_enabled(enable);
 }
 
 rtc::scoped_refptr<VideoTrack> VideoTrack::Create(
     const std::string& id, VideoSourceInterface* source) {
   rtc::RefCountedObject<VideoTrack>* track =
       new rtc::RefCountedObject<VideoTrack>(id, source);
   return track;
 }
 
 }  // namespace webrtc