Replace MessageLoopProxy with SingleThreadTaskRunner for the rest of media/.

media/audio/audio_output_dispatcher_impl.cc

Index: media/audio/audio_output_dispatcher_impl.cc
diff --git a/media/audio/audio_output_dispatcher_impl.cc b/media/audio/audio_output_dispatcher_impl.cc
index eaac8a4daae98c4e0167fe57da5c5d147aecf78a..53c9ce7fa9350e49c92ff196236fb8dcb5591507 100644
--- a/media/audio/audio_output_dispatcher_impl.cc
+++ b/media/audio/audio_output_dispatcher_impl.cc
@@ -8,7 +8,7 @@
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/time/time.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_output_proxy.h"
@@ -21,8 +21,10 @@ AudioOutputDispatcherImpl::AudioOutputDispatcherImpl(
     const std::string& output_device_id,
     const std::string& input_device_id,
     const base::TimeDelta& close_delay)
-    : AudioOutputDispatcher(audio_manager, params, output_device_id,
-          input_device_id),
+    : AudioOutputDispatcher(audio_manager,
+                            params,
+                            output_device_id,
+                            input_device_id),
       pause_delay_(base::TimeDelta::FromMicroseconds(
           2 * params.frames_per_buffer() * base::Time::kMicrosecondsPerSecond /
           static_cast<float>(params.sample_rate()))),
@@ -31,8 +33,7 @@ AudioOutputDispatcherImpl::AudioOutputDispatcherImpl(
       close_timer_(FROM_HERE,
                    close_delay,
                    this,
-                   &AudioOutputDispatcherImpl::ClosePendingStreams) {
-}
+                   &AudioOutputDispatcherImpl::ClosePendingStreams) {}
 
 AudioOutputDispatcherImpl::~AudioOutputDispatcherImpl() {
   DCHECK(proxy_to_physical_map_.empty());
@@ -41,7 +42,7 @@ AudioOutputDispatcherImpl::~AudioOutputDispatcherImpl() {
 }
 
 bool AudioOutputDispatcherImpl::OpenStream() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   paused_proxies_++;
 
@@ -58,7 +59,7 @@ bool AudioOutputDispatcherImpl::OpenStream() {
 bool AudioOutputDispatcherImpl::StartStream(
     AudioOutputStream::AudioSourceCallback* callback,
     AudioOutputProxy* stream_proxy) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (idle_streams_.empty() && !CreateAndOpenStream())
     return false;
@@ -81,7 +82,7 @@ bool AudioOutputDispatcherImpl::StartStream(
 }
 
 void AudioOutputDispatcherImpl::StopStream(AudioOutputProxy* stream_proxy) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   AudioStreamMap::iterator it = proxy_to_physical_map_.find(stream_proxy);
   DCHECK(it != proxy_to_physical_map_.end());
@@ -95,7 +96,7 @@ void AudioOutputDispatcherImpl::StopStream(AudioOutputProxy* stream_proxy) {
   pausing_streams_.push_front(physical_stream);
 
   // Don't recycle stream until two buffers worth of time has elapsed.
-  message_loop_->PostDelayedTask(
+  task_runner_->PostDelayedTask(
       FROM_HERE,
       base::Bind(&AudioOutputDispatcherImpl::StopStreamTask,
                  weak_this_.GetWeakPtr()),
@@ -104,7 +105,7 @@ void AudioOutputDispatcherImpl::StopStream(AudioOutputProxy* stream_proxy) {
 
 void AudioOutputDispatcherImpl::StreamVolumeSet(AudioOutputProxy* stream_proxy,
                                                 double volume) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
   AudioStreamMap::iterator it = proxy_to_physical_map_.find(stream_proxy);
   if (it != proxy_to_physical_map_.end()) {
     AudioOutputStream* physical_stream = it->second;
@@ -113,7 +114,7 @@ void AudioOutputDispatcherImpl::StreamVolumeSet(AudioOutputProxy* stream_proxy,
 }
 
 void AudioOutputDispatcherImpl::StopStreamTask() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (pausing_streams_.empty())
     return;
@@ -125,7 +126,7 @@ void AudioOutputDispatcherImpl::StopStreamTask() {
 }
 
 void AudioOutputDispatcherImpl::CloseStream(AudioOutputProxy* stream_proxy) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   while (!pausing_streams_.empty()) {
     idle_streams_.push_back(pausing_streams_.back());
@@ -142,7 +143,7 @@ void AudioOutputDispatcherImpl::CloseStream(AudioOutputProxy* stream_proxy) {
 }
 
 void AudioOutputDispatcherImpl::Shutdown() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   // Cancel any pending tasks to close paused streams or create new ones.
   weak_this_.InvalidateWeakPtrs();
@@ -163,7 +164,7 @@ void AudioOutputDispatcherImpl::Shutdown() {
 }
 
 bool AudioOutputDispatcherImpl::CreateAndOpenStream() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
   AudioOutputStream* stream = audio_manager_->MakeAudioOutputStream(
       params_, output_device_id_, input_device_id_);
   if (!stream)
@@ -179,7 +180,7 @@ bool AudioOutputDispatcherImpl::CreateAndOpenStream() {
 
 // This method is called by |close_timer_|.
 void AudioOutputDispatcherImpl::ClosePendingStreams() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
   while (!idle_streams_.empty()) {
     idle_streams_.back()->Close();
     idle_streams_.pop_back();