Promotes more accessors from WmShell to Shell

ash/common/system/date/date_default_view.cc

 // Copyright 2014 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/common/system/date/date_default_view.h"
 
 #include "ash/common/metrics/user_metrics_action.h"
 #include "ash/common/session/session_controller.h"
 #include "ash/common/shutdown_controller.h"
 #include "ash/common/system/date/date_view.h"
@@ skipping 71 matching lines @@
   if (login != LoginStatus::LOCKED) {
     shutdown_button_ = new TrayPopupHeaderButton(
         this, IDR_AURA_UBER_TRAY_SHUTDOWN, IDR_AURA_UBER_TRAY_SHUTDOWN,
         IDR_AURA_UBER_TRAY_SHUTDOWN_HOVER, IDR_AURA_UBER_TRAY_SHUTDOWN_HOVER,
         IDS_ASH_STATUS_TRAY_SHUTDOWN);
     shutdown_button_->SetTooltipText(
         l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_SHUTDOWN));
     view->AddViewToRowNonMd(shutdown_button_, true);
     // This object is recreated every time the menu opens. Don't bother updating
     // the tooltip if the shutdown policy changes while the menu is open.
-    bool reboot = WmShell::Get()->shutdown_controller()->reboot_on_shutdown();
+    bool reboot = Shell::Get()->shutdown_controller()->reboot_on_shutdown();
     shutdown_button_->SetTooltipText(l10n_util::GetStringUTF16(
         reboot ? IDS_ASH_STATUS_TRAY_REBOOT : IDS_ASH_STATUS_TRAY_SHUTDOWN));
   }
 
   if (shell->session_controller()->CanLockScreen()) {
     lock_button_ = new TrayPopupHeaderButton(
         this, IDR_AURA_UBER_TRAY_LOCKSCREEN, IDR_AURA_UBER_TRAY_LOCKSCREEN,
         IDR_AURA_UBER_TRAY_LOCKSCREEN_HOVER,
         IDR_AURA_UBER_TRAY_LOCKSCREEN_HOVER, IDS_ASH_STATUS_TRAY_LOCK);
     lock_button_->SetTooltipText(
@@ skipping 34 matching lines @@
     chromeos::DBusThreadManager::Get()
         ->GetSessionManagerClient()
         ->RequestLockScreen();
   } else {
     NOTREACHED();
   }
   date_view_->CloseSystemBubble();
 }
 
 }  // namespace ash