Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/.

media/audio/audio_input_device.h

 // 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.
 
 // Low-latency audio capturing class utilizing audio input stream provided
 // by a server (browser) process by use of an IPC interface.
 //
 // Relationship of classes:
 //
 //  AudioInputController                 AudioInputDevice
@@ skipping 44 matching lines @@
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "media/audio/audio_device_thread.h"
 #include "media/audio/audio_input_ipc.h"
 #include "media/audio/audio_parameters.h"
-#include "media/audio/scoped_loop_observer.h"
+#include "media/audio/scoped_task_runner_observer.h"
 #include "media/base/audio_capturer_source.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 // TODO(henrika): This class is based on the AudioOutputDevice class and it has
 // many components in common. Investigate potential for re-factoring.
 // See http://crbug.com/179597.
 // TODO(henrika): Add support for event handling (e.g. OnStateChanged,
 // OnCaptureStopped etc.) and ensure that we can deliver these notifications
 // to any clients using this class.
 class MEDIA_EXPORT AudioInputDevice
     : NON_EXPORTED_BASE(public AudioCapturerSource),
       NON_EXPORTED_BASE(public AudioInputIPCDelegate),
-      NON_EXPORTED_BASE(public ScopedLoopObserver) {
+      NON_EXPORTED_BASE(public ScopedTaskRunnerObserver) {
  public:
   // NOTE: Clients must call Initialize() before using.
-  AudioInputDevice(scoped_ptr<AudioInputIPC> ipc,
-                   const scoped_refptr<base::MessageLoopProxy>& io_loop);
+  AudioInputDevice(
+      scoped_ptr<AudioInputIPC> ipc,
+      const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   // AudioCapturerSource implementation.
   virtual void Initialize(const AudioParameters& params,
                           CaptureCallback* callback,
                           int session_id) OVERRIDE;
   virtual void Start() OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void SetVolume(double volume) OVERRIDE;
   virtual void SetAutomaticGainControl(bool enabled) OVERRIDE;
 
@@ skipping 71 matching lines @@
   // TODO(miu): Replace this by changing AudioCapturerSource to accept the
   // callback via Start(). See http://crbug.com/151051 for details.
   bool stopping_hack_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(AudioInputDevice);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_DEVICE_H_