Moved AudioUtil static functions to AudioManager interfaces

media/audio/ios/audio_manager_ios.h

Index: media/audio/ios/audio_manager_ios.h
diff --git a/media/audio/ios/audio_manager_ios.h b/media/audio/ios/audio_manager_ios.h
index 34a85fcb3d0efc21b16e390d11bb8c08210bee03..e1fd5dec0e6271be26f148c8fa77ffbbcfe711d8 100644
--- a/media/audio/ios/audio_manager_ios.h
+++ b/media/audio/ios/audio_manager_ios.h
@@ -25,6 +25,8 @@ class MEDIA_EXPORT AudioManagerIOS : public AudioManagerBase {
       const AudioParameters& params) OVERRIDE;
   virtual AudioInputStream* MakeAudioInputStream(
       const AudioParameters& params, const std::string& device_id) OVERRIDE;
+  virtual AudioParameters GetInputStreamParameters(
+      const std::string& device_id) OVERRIDE;
 
   // Implementation of AudioManagerBase.
   virtual AudioOutputStream* MakeLinearOutputStream(
@@ -41,6 +43,9 @@ class MEDIA_EXPORT AudioManagerIOS : public AudioManagerBase {
  protected:
   virtual ~AudioManagerIOS();
 
+  virtual AudioParameters GetPreferredOutputStreamParameters(
+      const AudioParameters& input_params) OVERRIDE;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioManagerIOS);
 };