Switch about box to web ui on Windows.

chrome/chrome_browser.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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 3928 matching lines @@
         'browser/ui/webui/help/help_handler.h',
         'browser/ui/webui/help/help_ui.cc',
         'browser/ui/webui/help/help_ui.h',
         'browser/ui/webui/help/version_updater.h',
         'browser/ui/webui/help/version_updater_basic.cc',
         'browser/ui/webui/help/version_updater_basic.h',
         'browser/ui/webui/help/version_updater_chromeos.cc',
         'browser/ui/webui/help/version_updater_chromeos.h',
         'browser/ui/webui/help/version_updater_mac.mm',
         'browser/ui/webui/help/version_updater_mac.h',
+        'browser/ui/webui/help/version_updater_win.cc',
         'browser/ui/webui/history_ui.cc',
         'browser/ui/webui/history_ui.h',
         'browser/ui/webui/inspect_ui.cc',
         'browser/ui/webui/inspect_ui.h',
         'browser/ui/webui/instant_ui.cc',
         'browser/ui/webui/instant_ui.h',
         'browser/ui/webui/media/media_internals_handler.cc',
         'browser/ui/webui/media/media_internals_handler.h',
         'browser/ui/webui/media/media_internals_proxy.cc',
         'browser/ui/webui/media/media_internals_proxy.h',
@@ skipping 1120 matching lines @@
             'browser/importer/nss_decryptor_system_nss.h',
             'browser/lifetime/application_lifetime_stub.cc',
             'browser/ui/certificate_dialogs.cc',
             'browser/ui/certificate_dialogs.h',
             'browser/ui/crypto_module_password_dialog.cc',
             'browser/ui/crypto_module_password_dialog_nss.cc',
             'browser/ui/startup/autolaunch_prompt.cc',
             'browser/ui/views/keyboard_overlay_delegate.cc',
             'browser/ui/views/keyboard_overlay_dialog_view.cc',
             'browser/ui/views/simple_message_box_views.cc',
+            'browser/ui/webui/help/version_updater_basic.cc',
+            'browser/ui/webui/help/version_updater_basic.h',
             'browser/ui/webui/tab_modal_confirm_dialog_webui.cc',
             'browser/ui/webui/tab_modal_confirm_dialog_webui.h',
           ],
           'conditions': [
             ['win_use_allocator_shim==1', {
               'dependencies': [
                 '<(allocator_target)',
               ],
             }],
           ],
@@ skipping 267 matching lines @@
         'browser/metrics/proto/study.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/metrics/proto',
         'proto_out_dir': 'chrome/browser/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }