ash: Remove ash::Shelf in favor of ash::WmShelf

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_aura.cc',
@@ skipping 112 matching lines @@
       'common/shelf/app_list_button.h',
       'common/shelf/app_list_shelf_item_delegate.cc',
       'common/shelf/app_list_shelf_item_delegate.h',
       'common/shelf/ink_drop_button_listener.h',
       'common/shelf/overflow_bubble.cc',
       'common/shelf/overflow_bubble.h',
       'common/shelf/overflow_bubble_view.cc',
       'common/shelf/overflow_bubble_view.h',
       'common/shelf/overflow_button.cc',
       'common/shelf/overflow_button.h',
-      'common/shelf/shelf.cc',
-      'common/shelf/shelf.h',
       'common/shelf/shelf_alignment_menu.cc',
       'common/shelf/shelf_alignment_menu.h',
       'common/shelf/shelf_background_animator.cc',
       'common/shelf/shelf_background_animator.h',
       'common/shelf/shelf_background_animator_observer.h',
       'common/shelf/shelf_button.cc',
       'common/shelf/shelf_button.h',
       'common/shelf/shelf_button_pressed_metric_tracker.cc',
       'common/shelf/shelf_button_pressed_metric_tracker.h',
       'common/shelf/shelf_constants.cc',
@@ skipping 700 matching lines @@
       'test/display_manager_test_api.cc',
       'test/display_manager_test_api.h',
       'test/immersive_fullscreen_controller_test_api.cc',
       'test/immersive_fullscreen_controller_test_api.h',
       'test/mirror_window_test_api.cc',
       'test/mirror_window_test_api.h',
       'test/overflow_bubble_view_test_api.cc',
       'test/overflow_bubble_view_test_api.h',
       'test/shelf_button_pressed_metric_tracker_test_api.cc',
       'test/shelf_button_pressed_metric_tracker_test_api.h',
-      'test/shelf_test_api.h',
       'test/shelf_view_test_api.cc',
       'test/shelf_view_test_api.h',
       'test/shell_test_api.cc',
       'test/shell_test_api.h',
       'test/status_area_widget_test_helper.cc',
       'test/status_area_widget_test_helper.h',
       'test/task_switch_time_tracker_test_api.cc',
       'test/task_switch_time_tracker_test_api.h',
       'test/test_activation_delegate.cc',
       'test/test_activation_delegate.h',
@@ skipping 648 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }