Split libjingle's signaling thread from the UI thread

content/renderer/media/media_stream_track.cc

 // Copyright 2014 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_track.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
 
 namespace content {
 
 // static
 MediaStreamTrack* MediaStreamTrack::GetTrack(
     const blink::WebMediaStreamTrack& track) {
   if (track.isNull())
     return NULL;
   return static_cast<MediaStreamTrack*>(track.extraData());
 }
 
-MediaStreamTrack::MediaStreamTrack(
-    const scoped_refptr<webrtc::MediaStreamTrackInterface>& track,
-    bool is_local_track)
-    : track_(track), is_local_track_(is_local_track) {
+MediaStreamTrack::MediaStreamTrack(bool is_local_track)
+    : is_local_track_(is_local_track) {
 }
 
 MediaStreamTrack::~MediaStreamTrack() {
 }
 
-void MediaStreamTrack::SetEnabled(bool enabled) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (track_.get())
-    track_->set_enabled(enabled);
-}
-
-// TODO(tommi): Remove this hack when we have a separate implementation for
-// remote media stream tracks.  Stop() can probably be made pure virtual.
-void MediaStreamTrack::Stop() {
-  DCHECK(!is_local_track_) << "Local implementations must override Stop()";
-  // Stop means that a track should be stopped permanently. But
-  // since there is no proper way of doing that on a remote track, we can
-  // at least disable the track. Blink will not call down to the content layer
-  // after a track has been stopped.
-  SetEnabled(false);
-}
-
 webrtc::AudioTrackInterface* MediaStreamTrack::GetAudioAdapter() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_EQ(track_->kind(), "audio");
-  return static_cast<webrtc::AudioTrackInterface*>(track_.get());
+  NOTREACHED();
+  return nullptr;
 }
 
 }  // namespace content