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

webkit/tools/test_shell/test_shell.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': {
     'test_shell_windows_resource_files': [
       'resources/test_shell.rc',
       '../../glue/resources/pan_east.cur',
       '../../glue/resources/pan_middle.cur',
@@ skipping 411 matching lines @@
         '../../fileapi/local_file_util_unittest.cc',
         '../../fileapi/mock_file_system_options.cc',
         '../../fileapi/mock_file_system_options.h',
         '../../fileapi/obfuscated_file_util_unittest.cc',
         '../../fileapi/quota_file_util_unittest.cc',
         '../../fileapi/sandbox_mount_point_provider_unittest.cc',
         '../../fileapi/test_file_set.cc',
         '../../fileapi/test_file_set.h',
         '../../fileapi/webfilewriter_base_unittest.cc',
         '../../glue/bookmarklet_unittest.cc',
-        '../../glue/context_menu_unittest.cc',
         '../../glue/cpp_bound_class_unittest.cc',
         '../../glue/cpp_variant_unittest.cc',
         '../../glue/dom_operations_unittest.cc',
         '../../glue/dom_serializer_unittest.cc',
         '../../glue/glue_serialize_unittest.cc',
         '../../glue/iframe_redirect_unittest.cc',
         '../../glue/mimetype_unittest.cc',
         '../../glue/multipart_response_delegate_unittest.cc',
         '../../glue/regular_expression_unittest.cc',
         '../../glue/resource_fetcher_unittest.cc',
@@ skipping 333 matching lines @@
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AppKit.framework',
             ],
           },
         },
       ],
     }],
   ],
 }