Adds WmWindow and converts WindowState to use it

ash/ash.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,
     # These files lists are shared with the GN build.
     'ash_sources': [
       'accelerators/accelerator_commands.cc',
@@ skipping 505 matching lines @@
       'utility/partial_screenshot_controller.h',
       'virtual_keyboard_controller.cc',
       'virtual_keyboard_controller.h',
       'volume_control_delegate.h',
       'wm/always_on_top_controller.cc',
       'wm/always_on_top_controller.h',
       'wm/ash_focus_rules.cc',
       'wm/ash_focus_rules.h',
       'wm/ash_native_cursor_manager.cc',
       'wm/ash_native_cursor_manager.h',
+      'wm/aura/wm_root_window_controller_aura.cc',
+      'wm/aura/wm_root_window_controller_aura.h',
+      'wm/aura/wm_window_aura.cc',
+      'wm/aura/wm_window_aura.h',
       'wm/boot_splash_screen_chromeos.cc',
       'wm/boot_splash_screen_chromeos.h',
       'wm/common/wm_event.cc',
       'wm/common/wm_event.h',
+      'wm/common/wm_root_window_controller.h',
+      'wm/common/wm_screen_util.cc',
+      'wm/common/wm_screen_util.h',
+      'wm/common/wm_window.h',
+      'wm/common/wm_window_observer.h',
+      'wm/common/wm_window_property.h',
       'wm/common/workspace/workspace_layout_manager_delegate.h',
       'wm/coordinate_conversion.cc',
       'wm/coordinate_conversion.h',
       'wm/cursor_manager_chromeos.cc',
       'wm/cursor_manager_chromeos.h',
       'wm/default_state.cc',
       'wm/default_state.h',
       'wm/default_window_resizer.cc',
       'wm/default_window_resizer.h',
       'wm/dim_window.cc',
@@ skipping 108 matching lines @@
       'wm/window_cycle_list.cc',
       'wm/window_cycle_list.h',
       'wm/window_positioner.cc',
       'wm/window_positioner.h',
       'wm/window_properties.cc',
       'wm/window_properties.h',
       'wm/window_resizer.cc',
       'wm/window_resizer.h',
       'wm/window_state.cc',
       'wm/window_state.h',
+      'wm/window_state_aura.cc',
+      'wm/window_state_aura.h',
       'wm/window_state_delegate.cc',
       'wm/window_state_delegate.h',
       'wm/window_state_observer.h',
       'wm/window_state_util.cc',
       'wm/window_state_util.h',
       'wm/window_util.cc',
       'wm/window_util.h',
       'wm/wm_types.cc',
       'wm/wm_types.h',
       'wm/workspace/magnetism_matcher.cc',
@@ skipping 699 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }