Switch to standard integer types in ppapi/.

ppapi/cpp/private/flash_clipboard.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_CPP_PRIVATE_FLASH_CLIPBOARD_H_
 #define PPAPI_CPP_PRIVATE_FLASH_CLIPBOARD_H_
 
+#include <stdint.h>
+
 #include <string>
 #include <vector>
 
 #include "ppapi/c/private/ppb_flash_clipboard.h"
 #include "ppapi/cpp/var.h"
 
 namespace pp {
 
 class InstanceHandle;
 
@@ skipping 32 matching lines @@
   // |sequence_number| and returns true if successful.
   static bool GetSequenceNumber(const InstanceHandle& instance,
                                 PP_Flash_Clipboard_Type clipboard_type,
                                 uint64_t* sequence_number);
 };
 
 }  // namespace flash
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FLASH_CLIPBOARD_H_