Introduce AudioRendererSink::IsOptimizedForHardwareParameters

media/audio/audio_output_stream_sink.cc

 // Copyright 2014 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_stream_sink.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/bind.h"
@@ skipping 61 matching lines @@
 bool AudioOutputStreamSink::SetVolume(double volume) {
   audio_task_runner_->PostTask(
       FROM_HERE, base::Bind(&AudioOutputStreamSink::DoSetVolume, this, volume));
   return true;
 }
 
 OutputDeviceInfo AudioOutputStreamSink::GetOutputDeviceInfo() {
   return OutputDeviceInfo();
 }
 
+bool AudioOutputStreamSink::IsOptimizedForHardwareParameters() {
+  return true;
+}
+
 bool AudioOutputStreamSink::CurrentThreadIsRenderingThread() {
   NOTIMPLEMENTED();
   return false;
 }
 
 int AudioOutputStreamSink::OnMoreData(base::TimeDelta delay,
                                       base::TimeTicks delay_timestamp,
                                       int prior_frames_skipped,
                                       AudioBus* dest) {
   // Note: Runs on the audio thread created by the OS.
@@ skipping 57 matching lines @@
   DCHECK(audio_task_runner_->BelongsToCurrentThread());
   stream_->SetVolume(volume);
 }
 
 void AudioOutputStreamSink::ClearCallback() {
   base::AutoLock al(callback_lock_);
   active_render_callback_ = NULL;
 }
 
 }  // namespace media