Introduce PPB_Flash_MessageLoop interface for Pepper Flash.

ppapi/ppapi_shared.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'ppapi_shared',
       'type': '<(component)',
       'dependencies': [
@@ skipping 135 matching lines @@
         'thunk/ppb_file_ref_api.h',
         'thunk/ppb_file_ref_thunk.cc',
         'thunk/ppb_file_system_api.h',
         'thunk/ppb_file_system_thunk.cc',
         'thunk/ppb_find_thunk.cc',
         'thunk/ppb_flash_clipboard_api.h',
         'thunk/ppb_flash_clipboard_thunk.cc',
         'thunk/ppb_flash_fullscreen_thunk.cc',
         'thunk/ppb_flash_menu_api.h',
         'thunk/ppb_flash_menu_thunk.cc',
+        'thunk/ppb_flash_message_loop_api.h',
+        'thunk/ppb_flash_message_loop_thunk.cc',
         'thunk/ppb_flash_net_connector_api.h',
         'thunk/ppb_flash_net_connector_thunk.cc',
         'thunk/ppb_font_api.h',
         'thunk/ppb_font_thunk.cc',
         'thunk/ppb_fullscreen_thunk.cc',
         'thunk/ppb_gamepad_thunk.cc',
         'thunk/ppb_gles_chromium_texture_mapping_thunk.cc',
         'thunk/ppb_graphics_2d_api.h',
         'thunk/ppb_graphics_2d_thunk.cc',
         'thunk/ppb_graphics_3d_api.h',
@@ skipping 39 matching lines @@
         'thunk/ppb_websocket_api.h',
         'thunk/ppb_websocket_thunk.cc',
         'thunk/ppb_widget_api.h',
         'thunk/ppb_widget_thunk.cc',
         'thunk/ppb_zoom_thunk.cc',
         'thunk/thunk.h',
       ],
     },
   ],
 }