Promotes more accessors from WmShell to Shell

chrome/browser/ui/ash/multi_user/user_switch_util.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 "chrome/browser/ui/ash/multi_user/user_switch_util.h"
 
 #include "ash/common/system/chromeos/screen_security/screen_tray_item.h"
 #include "ash/common/system/tray/system_tray.h"
 #include "ash/common/wm/overview/window_selector_controller.h"
-#include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/strings/grit/ash_strings.h"
 #include "chrome/browser/ui/simple_message_box.h"
 #include "ui/base/l10n/l10n_util.h"
 
 void TrySwitchingActiveUser(const base::Callback<void()> on_switch) {
   // Some unit tests do not have a shell. In that case simply execute.
   if (!ash::Shell::HasInstance()) {
     on_switch.Run();
     return;
   }
 
   // Cancel overview mode when switching user profiles.
   ash::WindowSelectorController* controller =
-      ash::WmShell::Get()->window_selector_controller();
+      ash::Shell::Get()->window_selector_controller();
   if (controller->IsSelecting())
     controller->ToggleOverview();
 
   // If neither screen sharing nor capturing is going on we can immediately
   // switch users.
   ash::SystemTray* system_tray =
       ash::Shell::GetInstance()->GetPrimarySystemTray();
   if (!system_tray->GetScreenShareItem()->is_started() &&
       !system_tray->GetScreenCaptureItem()->is_started()) {
     on_switch.Run();
     return;
   }
   if (chrome::ShowQuestionMessageBox(
           nullptr, l10n_util::GetStringUTF16(IDS_DESKTOP_CASTING_ACTIVE_TITLE),
           l10n_util::GetStringUTF16(IDS_DESKTOP_CASTING_ACTIVE_MESSAGE)) ==
       chrome::MESSAGE_BOX_RESULT_YES) {
     // Stop screen sharing and capturing.
     ash::SystemTray* system_tray =
         ash::Shell::GetInstance()->GetPrimarySystemTray();
     if (system_tray->GetScreenShareItem()->is_started())
       system_tray->GetScreenShareItem()->Stop();
     if (system_tray->GetScreenCaptureItem()->is_started())
       system_tray->GetScreenCaptureItem()->Stop();
 
     on_switch.Run();
   }
 }