Refactor MediaStreamTrack video onmute event.

content/renderer/media/media_stream_video_track.cc

 // Copyright 2013 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.
 
 #include "content/renderer/media/media_stream_video_track.h"
 
 #include <utility>
 
 #include "base/bind.h"
 
@@ skipping 244 matching lines @@
 
 void MediaStreamVideoTrack::OnReadyStateChanged(
     blink::WebMediaStreamSource::ReadyState state) {
   DCHECK(thread_checker_.CalledOnValidThread());
   for (std::vector<MediaStreamVideoSink*>::const_iterator it = sinks_.begin();
        it != sinks_.end(); ++it) {
     (*it)->OnReadyStateChanged(state);
   }
 }
 
-void MediaStreamVideoTrack::SetMutedState(bool muted_state) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  muted_state_ = muted_state;
-}
-
-bool MediaStreamVideoTrack::GetMutedState(void) const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return muted_state_;
-}
-
 }  // namespace content