Lots of files touched for a very simple change. Everywhere we used a const M...

media/filters/audio_renderer_impl.h

 // Copyright (c) 2009 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_FILTERS_AUDIO_RENDERER_IMPL_H_
 #define MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_
 
 // This is the default implementation of AudioRenderer, which uses the audio
 // interfaces to open an audio device.  Although it cannot be used in the
 // sandbox, it serves as a reference implementation and can be used in other
@@ skipping 11 matching lines @@
 namespace media {
 
 class AudioRendererImpl : public AudioRendererBase,
                           public AudioOutputStream::AudioSourceCallback {
  public:
   // FilterFactory provider.
   static FilterFactory* CreateFilterFactory() {
     return new FilterFactoryImpl0<AudioRendererImpl>();
   }
 
-  static bool IsMediaFormatSupported(const MediaFormat* media_format);
+  static bool IsMediaFormatSupported(const MediaFormat& media_format);
 
   // MediaFilter implementation.
   virtual void SetPlaybackRate(float playback_rate);
 
   // AudioRenderer implementation.
   virtual void SetVolume(float volume);
 
   // AudioSourceCallback implementation.
   virtual size_t OnMoreData(AudioOutputStream* stream, void* dest, size_t len);
   virtual void OnClose(AudioOutputStream* stream);
   virtual void OnError(AudioOutputStream* stream, int code);
 
  protected:
   // Only allow a factory to create this class.
   friend class FilterFactoryImpl0<AudioRendererImpl>;
   AudioRendererImpl();
   virtual ~AudioRendererImpl();
 
   // AudioRendererBase implementation.
-  virtual bool OnInitialize(const MediaFormat* media_format);
+  virtual bool OnInitialize(const MediaFormat& media_format);
   virtual void OnStop();
 
  private:
   // Audio output stream device.
   AudioOutputStream* stream_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_