mash: Migrate wallpaper controllers to ash/common.

ash/mus/accelerators/accelerator_controller_delegate_mus.cc

 // Copyright 2016 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.
 
 #include "ash/mus/accelerators/accelerator_controller_delegate_mus.h"
 
 #include "base/logging.h"
 #include "mash/public/interfaces/launchable.mojom.h"
 
 namespace ash {
@@ skipping 16 matching lines @@
   // replicated here to make sure we don't forget any. This list should
   // eventually be empty. If there are any actions that don't make sense for
   // mus, then they should be removed from AcceleratorAction.
   // http://crbug.com/612331.
   switch (action) {
     case DEBUG_TOGGLE_DEVICE_SCALE_FACTOR:
     case DEBUG_TOGGLE_ROOT_WINDOW_FULL_SCREEN:
     case DEBUG_TOGGLE_SHOW_DEBUG_BORDERS:
     case DEBUG_TOGGLE_SHOW_FPS_COUNTER:
     case DEBUG_TOGGLE_SHOW_PAINT_RECTS:
-    case DEBUG_TOGGLE_WALLPAPER_MODE:
     case MAGNIFY_SCREEN_ZOOM_IN:
     case MAGNIFY_SCREEN_ZOOM_OUT:
     case ROTATE_SCREEN:
     case ROTATE_WINDOW:
     case SCALE_UI_DOWN:
     case SCALE_UI_RESET:
     case SCALE_UI_UP:
     case SHOW_SYSTEM_TRAY_BUBBLE:
     case TAKE_PARTIAL_SCREENSHOT:
     case TAKE_SCREENSHOT:
@@ skipping 49 matching lines @@
     const char* const notification_id,
     int message_id,
     int old_shortcut_id,
     int new_shortcut_id) {
   // TODO: http://crbug.com/630316.
   NOTIMPLEMENTED();
 }
 
 }  // namespace mus
 }  // namespace ash