Add GetSequenceNumber function to PPB_Flash_Clipboard

ppapi/proxy/ppapi_messages.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.
 
 // Multiply-included message header, no traditional include guard.
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 1860 matching lines @@
                      uint32_t /* format */)
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_FlashClipboard_ReadData,
                      uint32_t /* clipboard_type */,
                      uint32_t /* format */)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashClipboard_ReadDataReply,
                      std::string /* result */)
 IPC_MESSAGE_CONTROL3(PpapiHostMsg_FlashClipboard_WriteData,
                      uint32_t /* clipboard_type */,
                      std::vector<uint32_t> /* formats */,
                      std::vector<std::string> /* data */)
+IPC_MESSAGE_CONTROL1(PpapiHostMsg_FlashClipboard_GetSequenceNumber,
+                     uint32_t /* clipboard_type */)
+IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashClipboard_GetSequenceNumberReply,
+                     uint64_t /* sequence_number */)
 
 // Flash file.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashFile_Create)
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_FlashFile_OpenFile,
                      ppapi::PepperFilePath /* path */,
                      int /* pp_open_flags */)
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_FlashFile_RenameFile,
                      ppapi::PepperFilePath /* from_path */,
                      ppapi::PepperFilePath /* to_path */)
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_FlashFile_DeleteFileOrDir,
@@ skipping 121 matching lines @@
 IPC_MESSAGE_CONTROL1(PpapiHostMsg_Talk_RequestPermission,
                      PP_TalkPermission /* permission */)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_RequestPermissionReply)
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Talk_StartRemoting)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_StartRemotingReply)
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Talk_StopRemoting)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_StopRemotingReply)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_Talk_NotifyEvent, PP_TalkEvent /* event */)
 
 #endif  // !defined(OS_NACL) && !defined(NACL_WIN64)