Deprecate NonThreadSafe in content/renderer/media in favor of SequenceChecker.

content/renderer/media/webrtc/media_stream_remote_video_source.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/webrtc/media_stream_remote_video_source.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 158 matching lines @@
 MediaStreamRemoteVideoSource::MediaStreamRemoteVideoSource(
     std::unique_ptr<TrackObserver> observer)
     : observer_(std::move(observer)) {
   // The callback will be automatically cleared when 'observer_' goes out of
   // scope and no further callbacks will occur.
   observer_->SetCallback(base::Bind(&MediaStreamRemoteVideoSource::OnChanged,
       base::Unretained(this)));
 }
 
 MediaStreamRemoteVideoSource::~MediaStreamRemoteVideoSource() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(!observer_);
 }
 
 void MediaStreamRemoteVideoSource::OnSourceTerminated() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   StopSourceImpl();
 }
 
 void MediaStreamRemoteVideoSource::GetCurrentSupportedFormats(
     int max_requested_width,
     int max_requested_height,
     double max_requested_frame_rate,
     const VideoCaptureDeviceFormatsCB& callback) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   media::VideoCaptureFormats formats;
   // Since the remote end is free to change the resolution at any point in time
   // the supported formats are unknown.
   callback.Run(formats);
 }
 
 void MediaStreamRemoteVideoSource::StartSourceImpl(
     const media::VideoCaptureFormat& format,
     const blink::WebMediaConstraints& constraints,
     const VideoCaptureDeliverFrameCB& frame_callback) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(!delegate_.get());
   delegate_ = new RemoteVideoSourceDelegate(io_task_runner(), frame_callback);
   scoped_refptr<webrtc::VideoTrackInterface> video_track(
       static_cast<webrtc::VideoTrackInterface*>(observer_->track().get()));
   video_track->AddOrUpdateSink(delegate_.get(), rtc::VideoSinkWants());
   OnStartDone(MEDIA_DEVICE_OK);
 }
 
 void MediaStreamRemoteVideoSource::StopSourceImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   // StopSourceImpl is called either when MediaStreamTrack.stop is called from
   // JS or blink gc the MediaStreamSource object or when OnSourceTerminated()
   // is called. Garbage collection will happen after the PeerConnection no
   // longer receives the video track.
   if (!observer_)
     return;
   DCHECK(state() != MediaStreamVideoSource::ENDED);
   scoped_refptr<webrtc::VideoTrackInterface> video_track(
       static_cast<webrtc::VideoTrackInterface*>(observer_->track().get()));
   video_track->RemoveSink(delegate_.get());
   // This removes the references to the webrtc video track.
   observer_.reset();
 }
 
 rtc::VideoSinkInterface<webrtc::VideoFrame>*
 MediaStreamRemoteVideoSource::SinkInterfaceForTest() {
   return delegate_.get();
 }
 
 void MediaStreamRemoteVideoSource::OnChanged(
     webrtc::MediaStreamTrackInterface::TrackState state) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   switch (state) {
     case webrtc::MediaStreamTrackInterface::kLive:
       SetReadyState(blink::WebMediaStreamSource::kReadyStateLive);
       break;
     case webrtc::MediaStreamTrackInterface::kEnded:
       SetReadyState(blink::WebMediaStreamSource::kReadyStateEnded);
       break;
     default:
       NOTREACHED();
       break;
   }
 }
 
 }  // namespace content