Add support for the audio-output-device switching IPC mechanism to the renderer lower layers (media…

media/audio/clockless_audio_sink.cc

 // Copyright 2013 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/clockless_audio_sink.h"
 
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/simple_thread.h"
 
 namespace media {
 
 // Internal to ClocklessAudioSink. Class is used to call Render() on a seperate
 // thread, running as fast as it can read the data.
 class ClocklessAudioSinkThread : public base::DelegateSimpleThread::Delegate {
  public:
   explicit ClocklessAudioSinkThread(const AudioParameters& params,
                                     AudioRendererSink::RenderCallback* callback)
@@ skipping 81 matching lines @@
 
   playing_ = false;
   playback_time_ = thread_->Stop();
 }
 
 bool ClocklessAudioSink::SetVolume(double volume) {
   // Audio is always muted.
   return volume == 0.0;
 }
 
+void ClocklessAudioSink::SwitchOutputDevice(
+    const std::string& device_id,
+    const GURL& security_origin,
+    const SwitchOutputDeviceCB& callback) {
+  callback.Run(SWITCH_OUTPUT_DEVICE_RESULT_ERROR_NOT_SUPPORTED);
+}
+
 }  // namespace media