Snap widgets to pixel boundary on ash

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,
     'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/chrome',
     # These files lists are shared with the GN build.
     'ash_sources': [
@@ skipping 231 matching lines @@
       'shelf/shelf_window_watcher.h',
       'shelf/shelf_window_watcher_item_delegate.cc',
       'shelf/shelf_window_watcher_item_delegate.h',
       'shell.cc',
       'shell.h',
       'shell_delegate.h',
       'shell_factory.h',
       'shell_init_params.cc',
       'shell_init_params.h',
       'shell_window_ids.h',
+      'snap_to_pixel_layout_manager.cc',
+      'snap_to_pixel_layout_manager.h',
       'sticky_keys/sticky_keys_state.h',
       'sticky_keys/sticky_keys_controller.cc',
       'sticky_keys/sticky_keys_controller.h',
       'sticky_keys/sticky_keys_overlay.cc',
       'sticky_keys/sticky_keys_overlay.h',
       'switchable_windows.cc',
       'switchable_windows.h',
       'system/audio/audio_observer.h',
       'system/audio/tray_audio.cc',
       'system/audio/tray_audio.h',
@@ skipping 982 matching lines @@
       'conditions': [
         ['chromeos==1', {
           'dependencies': [
             '../ui/display/display.gyp:display',
           ],
         }],
       ],
     },
   ],
 }