Rename ash desktop_background to wallpaper.

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"
 
 namespace ash {
 namespace mus {
 
 AcceleratorControllerDelegateMus::AcceleratorControllerDelegateMus() {}
 
 AcceleratorControllerDelegateMus::~AcceleratorControllerDelegateMus() {}
 
 bool AcceleratorControllerDelegateMus::HandlesAction(AcceleratorAction action) {
   // This is the list of actions that are not ported from aura. The actions are
   // 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_DESKTOP_BACKGROUND_MODE:
     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 FOCUS_SHELF:
     case LAUNCH_APP_0:
     case LAUNCH_APP_1:
     case LAUNCH_APP_2:
     case LAUNCH_APP_3:
     case LAUNCH_APP_4:
     case LAUNCH_APP_5:
     case LAUNCH_APP_6:
     case LAUNCH_APP_7:
     case LAUNCH_LAST_APP:
@@ skipping 54 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