PPAPI: Force async callback invocation option.

webkit/glue/webkit_glue.gypi

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../../..',
       },{
@@ skipping 188 matching lines @@
         '../plugins/npapi/webplugin_print_delegate.cc',
         '../plugins/npapi/webplugin_print_delegate.h',
         '../plugins/npapi/webplugininfo.cc',
         '../plugins/npapi/webplugininfo.h',
         '../plugins/npapi/webview_plugin.cc',
         '../plugins/npapi/webview_plugin.h',
         '../plugins/plugin_switches.cc',
         '../plugins/plugin_switches.h',
         '../plugins/ppapi/callbacks.cc',
         '../plugins/ppapi/callbacks.h',
+        '../plugins/ppapi/common.cc',
         '../plugins/ppapi/common.h',
         '../plugins/ppapi/dir_contents.h',
         '../plugins/ppapi/event_conversion.cc',
         '../plugins/ppapi/event_conversion.h',
         '../plugins/ppapi/file_callbacks.cc',
         '../plugins/ppapi/file_callbacks.h',
         '../plugins/ppapi/file_path.cc',
         '../plugins/ppapi/file_path.h',
         '../plugins/ppapi/file_type_conversions.cc',
         '../plugins/ppapi/file_type_conversions.h',
@@ skipping 324 matching lines @@
               },
               'includes': [ '../../build/grit_action.gypi' ],
             },
           ],
           'includes': [ '../../build/grit_target.gypi' ],
         },
       ],
     }],
   ],
 }