[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/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,
-                     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 MediaStreamBuffer* GetBuffer() OVERRIDE;
-  virtual int32_t GetBufferIndex() OVERRIDE;
-  virtual void Invalidate() OVERRIDE;
-
-  // Frame index
-  int32_t index_;
-
-  MediaStreamBuffer* buffer_;
-
-  DISALLOW_COPY_AND_ASSIGN(AudioFrameResource);
-};
-
-}  // namespace proxy
-}  // namespace ppapi
-
-#endif  // PPAPI_PROXY_AUDIO_FRAME_RESOURCE_H_