Switch to standard integer types in ppapi/.

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_BUFFER_API_H_
 #define PPAPI_THUNK_PPB_AUDIO_BUFFER_API_H_
 
+#include <stdint.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_AudioBuffer_API {
@@ skipping 11 matching lines @@
   // 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_BUFFER_API_H_