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

trunk/src/chrome/browser/chromeos/audio/audio_devices_pref_handler_impl.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_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_
 
 #include "base/observer_list.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "base/values.h"
 #include "chromeos/audio/audio_devices_pref_handler.h"
 
 class PrefRegistrySimple;
 class PrefService;
 
 namespace chromeos {
 
 // Class which implements AudioDevicesPrefHandler interface and register audio
 // preferences as well.
 class AudioDevicesPrefHandlerImpl : public AudioDevicesPrefHandler {
  public:
   explicit AudioDevicesPrefHandlerImpl(PrefService* local_state);
 
   // Overridden from AudioDevicesPrefHandler.
-  virtual double GetVolumeGainValue(uint64 device_id) OVERRIDE;
-  virtual void SetVolumeGainValue(uint64 device_id, double value) OVERRIDE;
-
-  virtual bool GetMuteValue(uint64 device_id) OVERRIDE;
-  virtual void SetMuteValue(uint64 device_id, bool mute_on) OVERRIDE;
-
+  virtual double GetOutputVolumeValue() OVERRIDE;
+  virtual bool GetOutputMuteValue() OVERRIDE;
+  virtual void SetOutputVolumeValue(double volume_percent) OVERRIDE;
+  virtual void SetOutputMuteValue(bool mute_on) OVERRIDE;
   virtual bool GetAudioCaptureAllowedValue() OVERRIDE;
   virtual bool GetAudioOutputAllowedValue() OVERRIDE;
-
   virtual void AddAudioPrefObserver(AudioPrefObserver* observer) OVERRIDE;
   virtual void RemoveAudioPrefObserver(AudioPrefObserver* observer) OVERRIDE;
 
   // Registers volume and mute preferences.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
  protected:
   virtual ~AudioDevicesPrefHandlerImpl();
 
  private:
@@ skipping 24 matching lines @@
   PrefService* local_state_;  // not owned
   PrefChangeRegistrar pref_change_registrar_;
   ObserverList<AudioPrefObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_