Move ContextMenuParams struct from webkit/glue to content/public/common. The reasons are:

webkit/glue/webkit_glue.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.
 
 {
   'variables': {
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../../..',
       },{
@@ skipping 328 matching lines @@
         '../plugins/ppapi/string.h',
         '../plugins/sad_plugin.cc',
         '../plugins/sad_plugin.h',
         '../plugins/webkit_plugins_export.h',
         '../plugins/webplugininfo.cc',
         '../plugins/webplugininfo.h',
         '../plugins/webview_plugin.cc',
         '../plugins/webview_plugin.h',
         'alt_error_page_resource_fetcher.cc',
         'alt_error_page_resource_fetcher.h',
-        'context_menu.cc',
-        'context_menu.h',
         'cpp_binding_example.cc',
         'cpp_binding_example.h',
         'cpp_bound_class.cc',
         'cpp_bound_class.h',
         'cpp_variant.cc',
         'cpp_variant.h',
         'dom_operations.cc',
         'dom_operations.h',
         'ftp_directory_listing_response_delegate.cc',
         'ftp_directory_listing_response_delegate.h',
@@ skipping 205 matching lines @@
               },
               'includes': [ '../../build/grit_action.gypi' ],
             },
           ],
           'includes': [ '../../build/grit_target.gypi' ],
         },
       ],
     }],
   ],
 }