Make a shared app menu model and update win and mac to use it. Remove the NSM...

chrome/chrome_browser.gypi

 # Copyright (c) 2009 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': 'browser',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 25 matching lines @@
         '<@(nacl_defines)',
       ],
       'sources': [
         # All .cc, .h, .m, and .mm files under browser except for tests and
         # mocks.
         'browser/alternate_nav_url_fetcher.cc',
         'browser/alternate_nav_url_fetcher.h',
         'browser/app_controller_cppsafe_mac.h',
         'browser/app_controller_mac.h',
         'browser/app_controller_mac.mm',
+        'browser/app_menu_model.cc',
+        'browser/app_menu_model.h',
         'browser/app_modal_dialog.cc',
         'browser/app_modal_dialog.h',
         'browser/app_modal_dialog_gtk.cc',
         'browser/app_modal_dialog_mac.mm',
         'browser/app_modal_dialog_win.cc',
         'browser/app_modal_dialog_queue.cc',
         'browser/app_modal_dialog_queue.h',
         'browser/autocomplete/autocomplete.cc',
         'browser/autocomplete/autocomplete.h',
         'browser/autocomplete/autocomplete_accessibility.cc',
@@ skipping 2352 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: