ash: Move more code from Shelf to WmShelf

ash/accelerators/accelerator_controller_delegate_aura.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/accelerators/accelerator_controller_delegate_aura.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <utility>
 
 #include "ash/accelerators/accelerator_commands_aura.h"
 #include "ash/common/accelerators/debug_commands.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/focus_cycler.h"
 #include "ash/common/gpu_support.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf.h"
 #include "ash/common/shelf/shelf_widget.h"
+#include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shell_delegate.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/system/status_area_widget.h"
 #include "ash/common/system/system_notifier.h"
 #include "ash/common/system/tray/system_tray.h"
 #include "ash/common/system/web_notification/web_notification_tray.h"
 #include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/common/wm_shell.h"
@@ skipping 104 matching lines @@
 }
 
 void HandleFocusShelf() {
   base::RecordAction(UserMetricsAction("Accel_Focus_Shelf"));
   WmShell::Get()->focus_cycler()->FocusWidget(
       Shelf::ForPrimaryDisplay()->shelf_widget());
 }
 
 void HandleLaunchAppN(int n) {
   base::RecordAction(UserMetricsAction("Accel_Launch_App"));
-  Shelf::ForPrimaryDisplay()->LaunchAppIndexAt(n);
+  WmShelf::LaunchShelfItem(n);
 }
 
 void HandleLaunchLastApp() {
   base::RecordAction(UserMetricsAction("Accel_Launch_Last_App"));
-  Shelf::ForPrimaryDisplay()->LaunchAppIndexAt(-1);
+  WmShelf::LaunchShelfItem(-1);
 }
 
 bool CanHandleMagnifyScreen() {
   return Shell::GetInstance()->magnification_controller()->IsEnabled();
 }
 
 // Magnify the screen
 void HandleMagnifyScreen(int delta_index) {
   if (Shell::GetInstance()->magnification_controller()->IsEnabled()) {
     // TODO(yoshiki): Move the following logic to MagnificationController.
@@ skipping 484 matching lines @@
           message_center::NotifierId(
               message_center::NotifierId::SYSTEM_COMPONENT,
               system_notifier::kNotifierDeprecatedAccelerator),
           message_center::RichNotificationData(),
           new DeprecatedAcceleratorNotificationDelegate));
   message_center::MessageCenter::Get()->AddNotification(
       std::move(notification));
 }
 
 }  // namespace ash