[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer

ppapi/proxy/audio_frame_resource.h

 // Copyright 2014 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 PPAPI_PROXY_AUDIO_FRAME_RESOURCE_H_
 #define PPAPI_PROXY_AUDIO_FRAME_RESOURCE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
-#include "ppapi/shared_impl/media_stream_frame.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_audio_frame_api.h"
 
 namespace ppapi {
+
+union MediaStreamBuffer;
+
 namespace proxy {
 
 class PPAPI_PROXY_EXPORT AudioFrameResource : public Resource,
                                               public thunk::PPB_AudioFrame_API {
  public:
   AudioFrameResource(PP_Instance instance,
                      int32_t index,
-                     MediaStreamFrame* frame);
+                     MediaStreamBuffer* buffer);
 
   virtual ~AudioFrameResource();
 
   // PluginResource overrides:
   virtual thunk::PPB_AudioFrame_API* AsPPB_AudioFrame_API() OVERRIDE;
 
   // PPB_AudioFrame_API overrides:
   virtual PP_TimeDelta GetTimestamp() OVERRIDE;
   virtual void SetTimestamp(PP_TimeDelta timestamp) OVERRIDE;
   virtual PP_AudioFrame_SampleRate GetSampleRate() OVERRIDE;
   virtual PP_AudioFrame_SampleSize GetSampleSize() OVERRIDE;
   virtual uint32_t GetNumberOfChannels() OVERRIDE;
   virtual uint32_t GetNumberOfSamples() OVERRIDE;
   virtual void* GetDataBuffer() OVERRIDE;
   virtual uint32_t GetDataBufferSize() OVERRIDE;
-  virtual MediaStreamFrame* GetFrameBuffer();
-  virtual int32_t GetFrameBufferIndex();
-  virtual void Invalidate();
+  virtual MediaStreamBuffer* GetBuffer() OVERRIDE;
+  virtual int32_t GetBufferIndex() OVERRIDE;
+  virtual void Invalidate() OVERRIDE;
 
   // Frame index
   int32_t index_;
 
-  MediaStreamFrame* frame_;
+  MediaStreamBuffer* buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioFrameResource);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_AUDIO_FRAME_RESOURCE_H_