Audio related IPC messages and handlers from browser to renderer

chrome/renderer/media/audio_renderer_impl.h

Index: chrome/renderer/media/audio_renderer_impl.h
diff --git a/chrome/renderer/media/audio_renderer_impl.h b/chrome/renderer/media/audio_renderer_impl.h
index e76bf641d1bbf530c841f27ba1e8d59ac46df861..9d6b0b445ebaf8125a75fa875e53c87df1386c48 100644
--- a/chrome/renderer/media/audio_renderer_impl.h
+++ b/chrome/renderer/media/audio_renderer_impl.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_RENDERER_MEDIA_AUDIO_RENDERER_IMPL_H_
 #define CHROME_RENDERER_MEDIA_AUDIO_RENDERER_IMPL_H_
 
+#include "base/shared_memory.h"
+#include "media/audio/audio_output.h"
 #include "media/base/factory.h"
 #include "media/base/filters.h"
 
@@ -31,6 +33,11 @@ class AudioRendererImpl : public media::AudioRenderer {
   // Answers question from the factory to see if we accept |format|.
   static bool IsMediaFormatSupported(const media::MediaFormat* format);
 
+  void OnRequestPacket();
+  void OnStateChanged(AudioOutputStream::State state, int info);
+  void OnCreated(base::SharedMemoryHandle handle, size_t length);
+  void OnVolume(double left, double right);
+
  protected:
   virtual ~AudioRendererImpl();