Revert 198556 "Implement the rest of the audio API."

trunk/src/chrome/browser/extensions/api/audio/audio_service.cc

 // Copyright (c) 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 "chrome/browser/extensions/api/audio/audio_service.h"
 
 namespace extensions {
 
 class AudioServiceImpl : public AudioService {
  public:
   AudioServiceImpl() {}
   virtual ~AudioServiceImpl() {}
 
   // Called by listeners to this service to add/remove themselves as observers.
   virtual void AddObserver(Observer* observer) OVERRIDE;
   virtual void RemoveObserver(Observer* observer) OVERRIDE;
 
   // Start to query audio device information.
   virtual void StartGetInfo(const GetInfoCallback& callback) OVERRIDE;
-  virtual void SetActiveDevices(const DeviceIdList& device_list) OVERRIDE;
-  virtual bool SetDeviceProperties(const std::string& device_id,
-                                   bool muted,
-                                   int volume,
-                                   int gain) OVERRIDE;
 };
 
 void AudioServiceImpl::AddObserver(Observer* observer) {
   // TODO: implement this for platforms other than Chrome OS.
 }
 
 void AudioServiceImpl::RemoveObserver(Observer* observer) {
   // TODO: implement this for platforms other than Chrome OS.
 }
 
 AudioService* AudioService::CreateInstance() {
   return new AudioServiceImpl;
 }
 
 void AudioServiceImpl::StartGetInfo(const GetInfoCallback& callback) {
   // TODO: implement this for platforms other than Chrome OS.
   if (!callback.is_null())
     callback.Run(OutputInfo(), InputInfo(), false);
 }
 
-void AudioServiceImpl::SetActiveDevices(const DeviceIdList& device_list) {
-}
-
-bool AudioServiceImpl::SetDeviceProperties(const std::string& device_id,
-                                           bool muted,
-                                           int volume,
-                                           int gain) {
-  return false;
-}
-
 }  // namespace extensions