Added arrow key navigation to Overview Mode

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 95 matching lines @@
         'controls/combobox/combobox.h',
         'controls/combobox/combobox_listener.h',
         'controls/focusable_border.cc',
         'controls/focusable_border.h',
         'controls/glow_hover_controller.cc',
         'controls/glow_hover_controller.h',
         'controls/image_view.cc',
         'controls/image_view.h',
         'controls/label.cc',
         'controls/label.h',
+        'controls/window_label.cc',
+        'controls/window_label.h',
         'controls/link.cc',
         'controls/link.h',
         'controls/link_listener.h',
         'controls/menu/display_change_listener_aura.cc',
         'controls/menu/menu.cc',
         'controls/menu/menu.h',
         'controls/menu/menu_2.cc',
         'controls/menu/menu_2.h',
         'controls/menu/menu_config.cc',
         'controls/menu/menu_config.h',
@@ skipping 577 matching lines @@
         }],
         ['use_aura==1', {
           'dependencies': [
             '../aura/aura.gyp:aura_test_support',
           ],
         }],
       ],
     },  # target_name: views_unittests
   ],
 }