Keep dedicated layers for hiding animation

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': [
       ['OS!="linux" or chromeos==1', {
@@ skipping 703 matching lines @@
         'window/dialog_client_view_unittest.cc',
         'window/dialog_delegate_unittest.cc',
         '../wm/core/compound_event_filter_unittest.cc',
         '../wm/core/cursor_manager_unittest.cc',
         '../wm/core/focus_controller_unittest.cc',
         '../wm/core/input_method_event_filter_unittest.cc',
         '../wm/core/image_grid_unittest.cc',
         '../wm/core/shadow_controller_unittest.cc',
         '../wm/core/transient_window_manager_unittest.cc',
         '../wm/core/transient_window_stacking_client_unittest.cc',
-        '../wm/core/visibility_controller_unittest.cc',
         '../wm/core/window_animations_unittest.cc',
       ],
       'conditions': [
         ['chromeos==0', {
           'sources!': [
             'touchui/touch_selection_controller_impl_unittest.cc',
           ],
         }, { # use_chromeos==1
           'sources/': [
             ['exclude', 'ime/input_method_bridge_unittest.cc'],
@@ skipping 253 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
   ],
 }