Split libjingle's signaling thread from the UI thread

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"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
@@ skipping 178 matching lines @@
 MediaStreamVideoTrack* MediaStreamVideoTrack::GetVideoTrack(
      const blink::WebMediaStreamTrack& track) {
   return static_cast<MediaStreamVideoTrack*>(track.extraData());
 }
 
 MediaStreamVideoTrack::MediaStreamVideoTrack(
     MediaStreamVideoSource* source,
     const blink::WebMediaConstraints& constraints,
     const MediaStreamVideoSource::ConstraintsCallback& callback,
     bool enabled)
-    : MediaStreamTrack(NULL, true),
+    : MediaStreamTrack(true),
       frame_deliverer_(
           new MediaStreamVideoTrack::FrameDeliverer(source->io_message_loop(),
                                                     enabled)),
       constraints_(constraints),
       source_(source) {
   DCHECK(!constraints.isNull());
   source->AddTrack(this,
                    base::Bind(
                        &MediaStreamVideoTrack::FrameDeliverer::DeliverFrameOnIO,
                        frame_deliverer_),
@@ skipping 19 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   std::vector<MediaStreamVideoSink*>::iterator it =
       std::find(sinks_.begin(), sinks_.end(), sink);
   DCHECK(it != sinks_.end());
   sinks_.erase(it);
   frame_deliverer_->RemoveCallback(sink);
 }
 
 void MediaStreamVideoTrack::SetEnabled(bool enabled) {
   DCHECK(thread_checker_.CalledOnValidThread());
-  MediaStreamTrack::SetEnabled(enabled);
-
   frame_deliverer_->SetEnabled(enabled);
   for (std::vector<MediaStreamVideoSink*>::const_iterator it = sinks_.begin();
        it != sinks_.end(); ++it) {
     (*it)->OnEnabledChanged(enabled);
   }
 }
 
 void MediaStreamVideoTrack::Stop() {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (source_) {
     source_->RemoveTrack(this);
     source_ = NULL;
   }
   OnReadyStateChanged(blink::WebMediaStreamSource::ReadyStateEnded);
 }
 
 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);
   }
 }
 
 }  // namespace content