Switch to standard integer types in ppapi/.

ppapi/thunk/ppb_flash_message_loop_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_FLASH_MESSAGE_LOOP_API_H_
 #define PPAPI_THUNK_PPB_FLASH_MESSAGE_LOOP_API_H_
 
+#include <stdint.h>
+
 #include "base/callback_forward.h"
 #include "ppapi/c/private/ppb_flash_message_loop.h"
 
 namespace ppapi {
 namespace thunk {
 
 class PPB_Flash_MessageLoop_API {
  public:
   virtual ~PPB_Flash_MessageLoop_API() {}
 
   virtual int32_t Run() = 0;
   virtual void Quit() = 0;
 
   // This is used by the proxy at the host side to call into the implementation.
   // |callback| is called when the message loop is signaled to quit but before
   // the method returns.
   typedef base::Callback<void (int32_t)> RunFromHostProxyCallback;
   virtual void RunFromHostProxy(
       const RunFromHostProxyCallback& callback) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_FLASH_MESSAGE_LOOP_API_H_