Delete FrameInput method and FrameInputWrapper class.

talk/app/webrtc/videotrack.cc

Index: talk/app/webrtc/videotrack.cc
diff --git a/talk/app/webrtc/videotrack.cc b/talk/app/webrtc/videotrack.cc
index f1382400689bf6846f9df14e61b9cbe62502eb5a..c649275fae268e388eb245f2fc5dac7f2ae999f4 100644
--- a/talk/app/webrtc/videotrack.cc
+++ b/talk/app/webrtc/videotrack.cc
@@ -58,6 +58,10 @@ 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);