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

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

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_AUDIO_AUDIO_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_AUDIO_AUDIO_SERVICE_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "chrome/common/extensions/api/audio.h"
 
 namespace extensions {
 
 typedef std::vector<linked_ptr<api::audio::OutputDeviceInfo> > OutputInfo;
 typedef std::vector<linked_ptr<api::audio::InputDeviceInfo> > InputInfo;
-typedef std::vector<std::string> DeviceIdList;
 
 class AudioService {
  public:
   class Observer {
    public:
     // Called when anything changes to the audio device configuration.
     virtual void OnDeviceChanged() = 0;
 
    protected:
     virtual ~Observer() {}
   };
 
   // Callback type for completing to get audio device information.
   typedef base::Callback<void(const OutputInfo&, const InputInfo&, bool)>
       GetInfoCallback;
 
   // Creates a platform-specific AudioService instance.
   static AudioService* CreateInstance();
 
   virtual ~AudioService() {}
 
   // Called by listeners to this service to add/remove themselves as observers.
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Start to query audio device information. Should be called on UI thread.
   // The |callback| will be invoked once the query is completed.
   virtual void StartGetInfo(const GetInfoCallback& callback) = 0;
 
-  // Set the devices in the following list as active. This will only pick
-  // the first input and first active devices to set to active.
-  virtual void SetActiveDevices(const DeviceIdList& device_list) = 0;
-
-  // Set the muted and volume/gain properties of a device.
-  virtual bool SetDeviceProperties(const std::string& device_id,
-                                   bool muted,
-                                   int volume,
-                                   int gain) = 0;
-
  protected:
   AudioService() {}
 
   DISALLOW_COPY_AND_ASSIGN(AudioService);
 };
 
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_AUDIO_AUDIO_SERVICE_H_