Add GetSequenceNumber function to PPB_Flash_Clipboard

ppapi/thunk/ppb_flash_clipboard_thunk.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 "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_flash_clipboard.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_flash_clipboard_api.h"
 #include "ppapi/thunk/thunk.h"
@@ skipping 59 matching lines @@
                       uint32_t data_item_count,
                       const PP_Flash_Clipboard_Format formats[],
                       const PP_Var data_items[]) {
   scoped_ptr<uint32_t[]> new_formats(new uint32_t[data_item_count]);
   for (uint32_t i = 0; i < data_item_count; ++i)
     new_formats[i] = static_cast<uint32_t>(formats[i]);
   return WriteData(instance, clipboard_type, data_item_count,
                    new_formats.get(), data_items);
 }
 
+PP_Bool GetSequenceNumber(PP_Instance instance,
+                          PP_Flash_Clipboard_Type clipboard_type,
+                          uint64_t* sequence_number) {
+  EnterInstanceAPI<PPB_Flash_Clipboard_API> enter(instance);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.functions()->GetSequenceNumber(instance, clipboard_type,
+                                              sequence_number);
+}
+
 const PPB_Flash_Clipboard_4_0 g_ppb_flash_clipboard_thunk_4_0 = {
   &IsFormatAvailable_4_0,
   &ReadData_4_0,
   &WriteData_4_0
 };
 
 const PPB_Flash_Clipboard_5_0 g_ppb_flash_clipboard_thunk_5_0 = {
   &RegisterCustomFormat,
   &IsFormatAvailable,
   &ReadData,
   &WriteData
 };
 
+const PPB_Flash_Clipboard_5_1 g_ppb_flash_clipboard_thunk_5_1 = {
+  &RegisterCustomFormat,
+  &IsFormatAvailable,
+  &ReadData,
+  &WriteData,
+  &GetSequenceNumber
+};
+
 }  // namespace
 
 const PPB_Flash_Clipboard_4_0* GetPPB_Flash_Clipboard_4_0_Thunk() {
   return &g_ppb_flash_clipboard_thunk_4_0;
 }
 
 const PPB_Flash_Clipboard_5_0* GetPPB_Flash_Clipboard_5_0_Thunk() {
   return &g_ppb_flash_clipboard_thunk_5_0;
 }
 
+const PPB_Flash_Clipboard_5_1* GetPPB_Flash_Clipboard_5_1_Thunk() {
+  return &g_ppb_flash_clipboard_thunk_5_1;
+}
+
 }  // namespace thunk
 }  // namespace ppapi