Enable keyboard accelerators while a menu is open

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,
     # Sources lists shared with GN build.
     'views_sources': [
       'accessibility/native_view_accessibility.cc',
       'accessibility/native_view_accessibility.h',
@@ skipping 356 matching lines @@
       'accessibility/ax_window_obj_wrapper.cc',
       'accessibility/ax_window_obj_wrapper.h',
       'bubble/bubble_window_targeter.cc',
       'bubble/bubble_window_targeter.h',
       'bubble/tray_bubble_view.cc',
       'bubble/tray_bubble_view.h',
       'controls/menu/display_change_listener_aura.cc',
       'controls/menu/menu_config_aura.cc',
       'controls/menu/menu_event_dispatcher.cc',
       'controls/menu/menu_event_dispatcher.h',
+      'controls/menu/menu_key_event_handler.cc',
+      'controls/menu/menu_key_event_handler.h',
       'controls/menu/menu_message_loop_aura.cc',
       'controls/menu/menu_message_loop_aura.h',
       'controls/native/native_view_host_aura.cc',
       'controls/native/native_view_host_aura.h',
       'corewm/cursor_height_provider_win.cc',
       'corewm/cursor_height_provider_win.h',
       'corewm/tooltip.h',
       'corewm/tooltip_aura.cc',
       'corewm/tooltip_aura.h',
       'corewm/tooltip_controller.cc',
@@ skipping 561 matching lines @@
                 '../aura/aura.gyp:aura',
                 '../wm/wm.gyp:wm',
               ],
             }],
           ],
         },  # target_name: macviews_interactive_ui_tests
       ],  # targets
     }],
   ],  # conditions
 }