Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/.

media/audio/audio_output_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.
 //
 // Audio rendering unit utilizing audio output stream provided by browser
 // process through IPC.
 //
 // Relationship of classes.
 //
 //  AudioOutputController                AudioOutputDevice
@@ skipping 44 matching lines @@
 // Implementation notes:
 // - The user must call Stop() before deleting the class instance.
 
 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_DEVICE_H_
 #define MEDIA_AUDIO_AUDIO_OUTPUT_DEVICE_H_
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
-#include "base/message_loop/message_loop.h"
 #include "media/audio/audio_device_thread.h"
 #include "media/audio/audio_output_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_renderer_sink.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 class MEDIA_EXPORT AudioOutputDevice
     : NON_EXPORTED_BASE(public AudioRendererSink),
       NON_EXPORTED_BASE(public AudioOutputIPCDelegate),
-      NON_EXPORTED_BASE(public ScopedLoopObserver) {
+      NON_EXPORTED_BASE(public ScopedTaskRunnerObserver) {
  public:
   // NOTE: Clients must call Initialize() before using.
-  AudioOutputDevice(scoped_ptr<AudioOutputIPC> ipc,
-                    const scoped_refptr<base::MessageLoopProxy>& io_loop);
+  AudioOutputDevice(
+      scoped_ptr<AudioOutputIPC> ipc,
+      const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   // Initialize function for clients wishing to have unified input and
   // output, |params| may specify |input_channels| > 0, representing a
   // number of input channels which will be at the same sample-rate
   // and buffer-size as the output as specified in |params|. |session_id| is
   // used for the browser to select the correct input device.
   // In this case, the callback's RenderIO() method will be called instead
   // of Render(), providing the synchronized input data at the same time as
   // when new output data is to be rendered.
   void InitializeUnifiedStream(const AudioParameters& params,
@@ skipping 83 matching lines @@
   // TODO(scherkus): Replace this by changing AudioRendererSink to either accept
   // the callback via Start(). See http://crbug.com/151051 for details.
   bool stopping_hack_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDevice);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_DEVICE_H_