Switch to standard integer types in ppapi/.

ppapi/thunk/ppb_audio_api.h

 // Copyright (c) 2012 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_API_H_
 #define PPAPI_THUNK_PPB_AUDIO_API_H_
 
+#include <stdint.h>
+
 #include "base/memory/ref_counted.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace base {
 class SharedMemory;
 }  // namespace base
 
 namespace ppapi {
@@ skipping 16 matching lines @@
       scoped_refptr<TrackedCallback> create_callback) = 0;
   virtual int32_t GetSyncSocket(int* sync_socket) = 0;
   virtual int32_t GetSharedMemory(base::SharedMemory** shm,
                                   uint32_t* shm_size) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_AUDIO_API_H_