content/child: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/renderer/media/media_stream_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/media_stream_video_source.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
@@ skipping 333 matching lines @@
 bool MediaStreamVideoSource::IsConstraintSupported(const std::string& name) {
   for (const char* constraint : kSupportedConstraints) {
     if (constraint == name)
       return true;
   }
   return false;
 }
 
 MediaStreamVideoSource::MediaStreamVideoSource()
     : state_(NEW),
-      track_adapter_(new VideoTrackAdapter(
-          ChildProcess::current()->io_message_loop_proxy())),
+      track_adapter_(
+          new VideoTrackAdapter(ChildProcess::current()->io_task_runner())),
       weak_factory_(this) {
 }
 
 MediaStreamVideoSource::~MediaStreamVideoSource() {
   DCHECK(CalledOnValidThread());
 }
 
 void MediaStreamVideoSource::AddTrack(
     MediaStreamVideoTrack* track,
     const VideoCaptureDeliverFrameCB& frame_callback,
@@ skipping 68 matching lines @@
     }
   }
   // Call |frame_adapter_->RemoveTrack| here even if adding the track has
   // failed and |frame_adapter_->AddCallback| has not been called.
   track_adapter_->RemoveTrack(video_track);
 
   if (tracks_.empty())
     StopSource();
 }
 
-const scoped_refptr<base::MessageLoopProxy>&
-MediaStreamVideoSource::io_message_loop() const {
+base::SingleThreadTaskRunner* MediaStreamVideoSource::io_task_runner() const {
   DCHECK(CalledOnValidThread());
-  return track_adapter_->io_message_loop();
+  return track_adapter_->io_task_runner();
 }
 
 void MediaStreamVideoSource::DoStopSource() {
   DCHECK(CalledOnValidThread());
   DVLOG(3) << "DoStopSource()";
   if (state_ == ENDED)
     return;
   track_adapter_->StopFrameMonitoring();
   StopSourceImpl();
   state_ = ENDED;
@@ skipping 156 matching lines @@
     : track(track),
       frame_callback(frame_callback),
       constraints(constraints),
       callback(callback) {
 }
 
 MediaStreamVideoSource::RequestedConstraints::~RequestedConstraints() {
 }
 
 }  // namespace content