cros: Remove system-level policy for audio capture allowed

chromeos/audio/audio_devices_pref_handler.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 CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_H_
 #define CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "chromeos/audio/audio_pref_observer.h"
@@ skipping 21 matching lines @@
   virtual double GetOutputVolumeValue(const AudioDevice* device) = 0;
   virtual double GetInputGainValue(const AudioDevice* device) = 0;
   // Sets the audio volume or gain value to prefs for a device.
   virtual void SetVolumeGainValue(const AudioDevice& device, double value) = 0;
 
   // Reads the audio mute value from prefs for a device.
   virtual bool GetMuteValue(const AudioDevice& device) = 0;
   // Sets the audio mute value to prefs for a device.
   virtual void SetMuteValue(const AudioDevice& device, bool mute_on) = 0;
 
-  // Reads the audio capture allowed value from prefs, which can be used to
-  // disable audio capture via policy.
-  virtual bool GetAudioCaptureAllowedValue() = 0;
   // Reads the audio output allowed value from prefs.
   virtual bool GetAudioOutputAllowedValue() = 0;
 
   // Adds an audio preference observer.
   virtual void AddAudioPrefObserver(AudioPrefObserver* observer) = 0;
   // Removes an audio preference observer.
   virtual void RemoveAudioPrefObserver(AudioPrefObserver* observer) = 0;
 
  protected:
   virtual ~AudioDevicesPrefHandler() {}
 
  private:
   friend class base::RefCountedThreadSafe<AudioDevicesPrefHandler>;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_H_