Add cr-settings-radio-group wrapper

chrome/browser/resources/settings/compiled_resources.gyp

 # Copyright 2014 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': 'settings_resources',
       'type': 'none',
       'dependencies': [
         'checkbox/compiled_resources.gyp:*',
         'internet_page/compiled_resources.gyp:*',
         'languages_page/compiled_resources.gyp:*',
         'on_startup_page/compiled_resources.gyp:*',
-        'prefs/compiled_resources.gyp:*'
+        'prefs/compiled_resources.gyp:*',
+        'radio_group/compiled_resources.gyp:*',
       ],
     },
   ]
 }