Switch to standard integer types in ppapi/.

ppapi/proxy/flash_clipboard_resource.cc

 // 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.
 
 #include "ppapi/proxy/flash_clipboard_resource.h"
 
+#include <stddef.h>
+
 #include "base/numerics/safe_conversions.h"
 #include "ipc/ipc_message.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/var.h"
 #include "ppapi/shared_impl/var_tracker.h"
 
 namespace ppapi {
 namespace proxy {
@@ skipping 143 matching lines @@
   int32_t result =
       SyncCall<PpapiPluginMsg_FlashClipboard_GetSequenceNumberReply>(
           BROWSER,
           PpapiHostMsg_FlashClipboard_GetSequenceNumber(clipboard_type),
           sequence_number);
   return PP_FromBool(result == PP_OK);
 }
 
 }  // namespace proxy
 }  // namespace ppapi