Refactor the about:version code out of about_ui.

chrome/chrome_browser_ui.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_ui',
       'type': 'static_library',
@@ skipping 1984 matching lines @@
         'browser/ui/webui/task_manager/task_manager_ui.cc',
         'browser/ui/webui/task_manager/task_manager_ui.h',
         'browser/ui/webui/test_chrome_web_ui_controller_factory.cc',
         'browser/ui/webui/test_chrome_web_ui_controller_factory.h',
         'browser/ui/webui/theme_source.cc',
         'browser/ui/webui/theme_source.h',
         'browser/ui/webui/tracing_ui.cc',
         'browser/ui/webui/tracing_ui.h',
         'browser/ui/webui/uber/uber_ui.cc',
         'browser/ui/webui/uber/uber_ui.h',
+        'browser/ui/webui/version_handler.cc',
+        'browser/ui/webui/version_handler.h',
+        'browser/ui/webui/version_handler_chromeos.cc',
+        'browser/ui/webui/version_handler_chromeos.h',
+        'browser/ui/webui/version_ui.cc',
+        'browser/ui/webui/version_ui.h',
         'browser/ui/webui/web_ui_util.cc',
         'browser/ui/webui/web_ui_util.h',
         'browser/ui/webui/welcome_ui_android.cc',
         'browser/ui/webui/welcome_ui_android.h',
         'browser/ui/window_sizer/window_sizer.cc',
         'browser/ui/window_sizer/window_sizer.h',
         'browser/ui/window_sizer/window_sizer_ash.cc',
         'browser/ui/window_sizer/window_sizer_aura.cc',
         'browser/ui/window_sizer/window_sizer_gtk.cc',
         'browser/ui/window_sizer/window_sizer_mac.mm',
@@ skipping 601 matching lines @@
             ['exclude', '^browser/ui/views/select_file_dialog_extension.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension.h'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.cc'],
             ['exclude', '^browser/ui/views/select_file_dialog_extension_factory.h'],
           ]}
         ],
       ],
     },
   ],
 }