Moved AudioUtil static functions to AudioManager interfaces

media/audio/mac/audio_manager_mac.h

Index: media/audio/mac/audio_manager_mac.h
diff --git a/media/audio/mac/audio_manager_mac.h b/media/audio/mac/audio_manager_mac.h
index cdfa241618fb4165ff98ec8b69dd9823a201d21b..5eba595f8535770fbd9f5a71cf00ceb5610cc7d1 100644
--- a/media/audio/mac/audio_manager_mac.h
+++ b/media/audio/mac/audio_manager_mac.h
@@ -25,6 +25,8 @@ class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase {
   virtual bool HasAudioInputDevices() OVERRIDE;
   virtual void GetAudioInputDeviceNames(media::AudioDeviceNames* device_names)
       OVERRIDE;
+  virtual AudioParameters GetInputStreamParameters(
+      const std::string& device_id) OVERRIDE;
 
   // Implementation of AudioManagerBase.
   virtual AudioOutputStream* MakeLinearOutputStream(
@@ -35,12 +37,13 @@ class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase {
       const AudioParameters& params, const std::string& device_id) OVERRIDE;
   virtual AudioInputStream* MakeLowLatencyInputStream(
       const AudioParameters& params, const std::string& device_id) OVERRIDE;
-  virtual AudioParameters GetPreferredLowLatencyOutputStreamParameters(
-      const AudioParameters& input_params) OVERRIDE;
 
  protected:
   virtual ~AudioManagerMac();
 
+  virtual AudioParameters GetPreferredOutputStreamParameters(
+      const AudioParameters& input_params) OVERRIDE;
+
  private:
   // Helper methods for constructing AudioDeviceListenerMac on the audio thread.
   void CreateDeviceListener();