Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/.

media/audio/win/audio_manager_win.cc

 // Copyright (c) 2012 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 "media/audio/audio_io.h"
 
 #include <windows.h>
 #include <objbase.h>  // This has to be before initguid.h
 #include <initguid.h>
 #include <mmsystem.h>
@@ skipping 123 matching lines @@
     enumeration_type_ = kWaveEnumeration;
   } else {
     // Use the MMDevice API for device enumeration if Vista or higher.
     enumeration_type_ = kMMDeviceEnumeration;
   }
 
   SetMaxOutputStreamsAllowed(kMaxOutputStreams);
 
   // Task must be posted last to avoid races from handing out "this" to the
   // audio thread.
-  GetMessageLoop()->PostTask(FROM_HERE, base::Bind(
+  GetTaskRunner()->PostTask(FROM_HERE, base::Bind(
       &AudioManagerWin::CreateDeviceListener, base::Unretained(this)));
 }
 
 AudioManagerWin::~AudioManagerWin() {
   // It's safe to post a task here since Shutdown() will wait for all tasks to
   // complete before returning.
-  GetMessageLoop()->PostTask(FROM_HERE, base::Bind(
+  GetTaskRunner()->PostTask(FROM_HERE, base::Bind(
       &AudioManagerWin::DestroyDeviceListener, base::Unretained(this)));
   Shutdown();
 }
 
 bool AudioManagerWin::HasAudioOutputDevices() {
   return (::waveOutGetNumDevs() != 0);
 }
 
 bool AudioManagerWin::HasAudioInputDevices() {
   return (::waveInGetNumDevs() != 0);
 }
 
 void AudioManagerWin::CreateDeviceListener() {
   // AudioDeviceListenerWin must be initialized on a COM thread and should only
   // be used if WASAPI / Core Audio is supported.
   if (CoreAudioUtil::IsSupported()) {
     output_device_listener_.reset(new AudioDeviceListenerWin(BindToLoop(
-        GetMessageLoop(), base::Bind(
+        GetTaskRunner(), base::Bind(
             &AudioManagerWin::NotifyAllOutputDeviceChangeListeners,
             base::Unretained(this)))));
   }
 }
 
 void AudioManagerWin::DestroyDeviceListener() {
   output_device_listener_.reset();
 }
 
 base::string16 AudioManagerWin::GetAudioInputDeviceModel() {
@@ skipping 343 matching lines @@
   return new PCMWaveInAudioInputStream(this, params, kNumInputBuffers,
                                        xp_device_id);
 }
 
 /// static
 AudioManager* CreateAudioManager(AudioLogFactory* audio_log_factory) {
   return new AudioManagerWin(audio_log_factory);
 }
 
 }  // namespace media