Moved AudioUtil static functions to AudioManager interfaces

media/audio/audio_manager_base.h

 // 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.
 
 #ifndef MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_
 #define MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 65 matching lines @@
 
   // Creates the input stream for the |AUDIO_PCM_LINEAR| format. The legacy
   // name is also from |AUDIO_PCM_LINEAR|.
   virtual AudioInputStream* MakeLinearInputStream(
       const AudioParameters& params, const std::string& device_id) = 0;
 
   // Creates the input stream for the |AUDIO_PCM_LOW_LATENCY| format.
   virtual AudioInputStream* MakeLowLatencyInputStream(
       const AudioParameters& params, const std::string& device_id) = 0;
 
-  // Returns the preferred hardware audio output parameters for opening output
-  // streams in the |AUDIO_PCM_LOW_LATENCY| format.
-  // TODO(dalecurtis): Retrieve the |channel_layout| value from hardware instead
-  // of accepting the value.
-  // TODO(dalecurtis): Each AudioManager should implement their own version, see
-  // http://crbug.com/137326
-  virtual AudioParameters GetPreferredLowLatencyOutputStreamParameters(
-      const AudioParameters& input_params);
-
   // Listeners will be notified on the AudioManager::GetMessageLoop() loop.
   virtual void AddOutputDeviceChangeListener(
       AudioDeviceListener* listener) OVERRIDE;
   virtual void RemoveOutputDeviceChangeListener(
       AudioDeviceListener* listener) OVERRIDE;
 
  protected:
   AudioManagerBase();
 
   // TODO(dalecurtis): This must change to map both input and output parameters
@@ skipping 52 matching lines @@
   // tasks which run on the audio thread even after Shutdown() has been started
   // and GetMessageLoop() starts returning NULL.
   scoped_refptr<base::MessageLoopProxy> message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerBase);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_BASE_H_