Create a cross-platform helper class for badging the wrench menu.

chrome/chrome_browser_ui.gypi

 # Copyright 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': {
     'chrome_browser_ui_non_ios_sources': [
       'browser/ui/accelerator_utils.h',
       'browser/ui/android/android_about_app_info.cc',
       'browser/ui/android/android_about_app_info.h',
@@ skipping 1543 matching lines @@
       'browser/ui/tabs/tab_strip_model_utils.cc',
       'browser/ui/tabs/tab_strip_model_utils.h',
       'browser/ui/toolbar/back_forward_menu_model.cc',
       'browser/ui/toolbar/back_forward_menu_model.h',
       'browser/ui/toolbar/bookmark_sub_menu_model.cc',
       'browser/ui/toolbar/bookmark_sub_menu_model.h',
       'browser/ui/toolbar/encoding_menu_controller.cc',
       'browser/ui/toolbar/encoding_menu_controller.h',
       'browser/ui/toolbar/recent_tabs_sub_menu_model.cc',
       'browser/ui/toolbar/recent_tabs_sub_menu_model.h',
+      'browser/ui/toolbar/wrench_menu_badge_controller.cc',
+      'browser/ui/toolbar/wrench_menu_badge_controller.h',
       'browser/ui/toolbar/wrench_icon_painter.cc',
       'browser/ui/toolbar/wrench_icon_painter.h',
       'browser/ui/toolbar/wrench_menu_model.cc',
       'browser/ui/toolbar/wrench_menu_model.h',
       'browser/ui/uma_browsing_activity_observer.cc',
       'browser/ui/uma_browsing_activity_observer.h',
       'browser/ui/unload_controller.cc',
       'browser/ui/unload_controller.h',
       'browser/ui/website_settings/permission_menu_model.cc',
       'browser/ui/website_settings/permission_menu_model.h',
@@ skipping 1369 matching lines @@
         }],
         ['enable_spellcheck==1', {
           'dependencies': [
             '../third_party/hunspell/hunspell.gyp:hunspell',
           ],
         }],
       ],
     },
   ],
 }