Moving SwitchOutputDevice out of OutputDevice interface, eliminating OutputDevice

media/audio/audio_output_device.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_device.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cmath>
@@ skipping 124 matching lines @@
     return false;
   }
 
   return true;
 }
 
 OutputDevice* AudioOutputDevice::GetOutputDevice() {
   return this;
 }
 
-void AudioOutputDevice::SwitchOutputDevice(
-    const std::string& device_id,
-    const url::Origin& security_origin,
-    const SwitchOutputDeviceCB& callback) {
-  NOTREACHED();
-}
-
 AudioParameters AudioOutputDevice::GetOutputParameters() {
   CHECK(!task_runner()->BelongsToCurrentThread());
   did_receive_auth_.Wait();
   return output_params_;
 }
 
 OutputDeviceStatus AudioOutputDevice::GetDeviceStatus() {
   CHECK(!task_runner()->BelongsToCurrentThread());
   did_receive_auth_.Wait();
   return device_status_;
 }
 
+std::string AudioOutputDevice::GetDeviceId() {
+  CHECK(!task_runner()->BelongsToCurrentThread());
+  did_receive_auth_.Wait();
+  return device_id_;
+}
+
 void AudioOutputDevice::RequestDeviceAuthorizationOnIOThread() {
   DCHECK(task_runner()->BelongsToCurrentThread());
   DCHECK_EQ(state_, IDLE);
   state_ = AUTHORIZING;
   ipc_->RequestDeviceAuthorization(this, session_id_, device_id_,
                                    security_origin_);
 }
 
 void AudioOutputDevice::CreateStreamOnIOThread(const AudioParameters& params) {
   DCHECK(task_runner()->BelongsToCurrentThread());
@@ skipping 267 matching lines @@
 
   // Update the audio-delay measurement, inform about the number of skipped
   // frames, and ask client to render audio.  Since |output_bus_| is wrapping
   // the shared memory the Render() call is writing directly into the shared
   // memory.
   render_callback_->Render(output_bus_.get(), std::round(frames_delayed),
                            frames_skipped);
 }
 
 }  // namespace media