[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer

ppapi/thunk/ppb_audio_buffer_api.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_THUNK_PPB_AUDIO_FRAME_API_H_
-#define PPAPI_THUNK_PPB_AUDIO_FRAME_API_H_
+#ifndef PPAPI_THUNK_PPB_AUDIO_BUFFER_API_H_
+#define PPAPI_THUNK_PPB_AUDIO_BUFFER_API_H_
 
-#include "ppapi/c/ppb_audio_frame.h"
+#include "ppapi/c/ppb_audio_buffer.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 
 union MediaStreamBuffer;
 
 namespace thunk {
 
-class PPAPI_THUNK_EXPORT PPB_AudioFrame_API {
+class PPAPI_THUNK_EXPORT PPB_AudioBuffer_API {
  public:
-  virtual ~PPB_AudioFrame_API() {}
+  virtual ~PPB_AudioBuffer_API() {}
   virtual PP_TimeDelta GetTimestamp() = 0;
   virtual void SetTimestamp(PP_TimeDelta timestamp) = 0;
-  virtual PP_AudioFrame_SampleRate GetSampleRate() = 0;
-  virtual PP_AudioFrame_SampleSize GetSampleSize() = 0;
+  virtual PP_AudioBuffer_SampleRate GetSampleRate() = 0;
+  virtual PP_AudioBuffer_SampleSize GetSampleSize() = 0;
   virtual uint32_t GetNumberOfChannels() = 0;
   virtual uint32_t GetNumberOfSamples() = 0;
   virtual void* GetDataBuffer() = 0;
   virtual uint32_t GetDataBufferSize() = 0;
 
   // Methods used by Pepper internal implementation only.
   virtual MediaStreamBuffer* GetBuffer() = 0;
   virtual int32_t GetBufferIndex() = 0;
   virtual void Invalidate() = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
-#endif  // PPAPI_THUNK_PPB_AUDIO_FRAME_API_H_
+#endif  // PPAPI_THUNK_PPB_AUDIO_BUFFER_API_H_