Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/.

media/audio/audio_output_controller.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_output_controller.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
-#include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/task_runner_util.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "media/base/scoped_histogram_timer.h"
 
 using base::Time;
 using base::TimeDelta;
 
@@ skipping 24 matching lines @@
       params_(params),
       handler_(handler),
       output_device_id_(output_device_id),
       input_device_id_(input_device_id),
       stream_(NULL),
       diverting_to_stream_(NULL),
       volume_(1.0),
       state_(kEmpty),
       num_allowed_io_(0),
       sync_reader_(sync_reader),
-      message_loop_(audio_manager->GetMessageLoop()),
+      message_loop_(audio_manager->GetTaskRunner()),
 #if defined(AUDIO_POWER_MONITORING)
       power_monitor_(
           params.sample_rate(),
           TimeDelta::FromMilliseconds(kPowerMeasurementTimeConstantMillis)),
 #endif
       on_more_io_data_called_(0) {
   DCHECK(audio_manager);
   DCHECK(handler_);
   DCHECK(sync_reader_);
   DCHECK(message_loop_.get());
@@ skipping 419 matching lines @@
     UMA_HISTOGRAM_BOOLEAN(
         "Media.AudioOutputControllerPlaybackStartupSuccess", playback_success);
 
     // Let the AudioManager try and fix it.
     if (!playback_success)
       audio_manager_->FixWedgedAudio();
   }
 }
 
 }  // namespace media