Refactors building the system menu model into a common place

ui/views/views.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
   },
   'target_defaults': {
     'conditions': [
       ['use_aura==1', {
@@ skipping 430 matching lines @@
         'window/non_client_view.h',
         'window/window_resources.h',
         'window/window_shape.cc',
         'window/window_shape.h',
       ],
       'include_dirs': [
         '../../third_party/wtl/include',
       ],
       'conditions': [
         ['use_aura==1', {
-          'sources/': [
-            ['exclude', 'controls/menu/menu_2.*'],
-          ],
           'sources!': [
             'controls/native_control.cc',
             'controls/native_control.h',
             'controls/scrollbar/bitmap_scroll_bar.cc',
             'controls/scrollbar/bitmap_scroll_bar.h',
             'controls/table/group_table_model.h',
             'controls/table/group_table_view.cc',
             'controls/table/group_table_view.h',
             'controls/table/table_view_observer.h',
             'widget/aero_tooltip_manager.cc',
             'widget/aero_tooltip_manager.h',
             'widget/child_window_message_processor.cc',
             'widget/child_window_message_processor.h',
           ],
           'conditions': [
             ['OS=="mac"', {
               'sources/': [
                 ['exclude', 'mouse_watcher.cc'],
                 ['exclude', 'controls/menu/'],
                 ['exclude', 'controls/scrollbar/'],
                 ['exclude', 'focus/accelerator_handler_aura.cc'],
               ],
             }],
             ['OS=="win"', {
               'sources/': [
+                ['include', 'controls/menu/native_menu_win.cc'],
+                ['include', 'controls/menu/native_menu_win.h'],
                 ['include', 'widget/desktop_aura/desktop_screen_win.cc'],
                 ['include', 'widget/desktop_aura/desktop_drag_drop_client_win.cc'],
                 ['include', 'widget/desktop_aura/desktop_drop_target_win.cc'],
                 ['include', 'widget/desktop_aura/desktop_root_window_host_win.cc'],
               ],
             }],
+            ['OS!="win"', {
+              'sources/': [
+                ['exclude', 'controls/menu/menu_2.*'],
+              ],
+            }],
           ],
         }],
         ['use_aura==0', {
           'sources/': [
             ['exclude', 'corewm'],
             ['exclude', 'widget/desktop_aura'],
           ],
           'sources!': [
             'widget/native_widget_aura_window_observer.cc',
             'widget/native_widget_aura_window_observer.h',
@@ skipping 491 matching lines @@
           'sources/': [
             # This is needed because the aura rule strips it from the default
             # sources list.
             ['include', '^../../content/app/startup_helper_win.cc'],
           ],
         }],
       ],
     },  # target_name: views_examples_with_content_exe
   ],
 }