Implement ScreenOrientationDelegate on ChromeOS

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 79 matching lines @@
       'display/mouse_cursor_event_filter.cc',
       'display/mouse_cursor_event_filter.h',
       'display/projecting_observer_chromeos.cc',
       'display/projecting_observer_chromeos.h',
       'display/resolution_notification_controller.cc',
       'display/resolution_notification_controller.h',
       'display/root_window_transformers.cc',
       'display/root_window_transformers.h',
       'display/screen_ash.cc',
       'display/screen_ash.h',
+      'display/screen_orientation_delegate_chromeos.cc',
+      'display/screen_orientation_delegate_chromeos.h',
       'display/screen_position_controller.cc',
       'display/screen_position_controller.h',
       'display/shared_display_edge_indicator.cc',
       'display/shared_display_edge_indicator.h',
       'drag_drop/drag_drop_controller.cc',
       'drag_drop/drag_drop_controller.h',
       'drag_drop/drag_drop_tracker.cc',
       'drag_drop/drag_drop_tracker.h',
       'drag_drop/drag_image_view.cc',
       'drag_drop/drag_image_view.h',
@@ skipping 1182 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'ash_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }