Moves maintaining root_window_for_new_windows_ to Shell

chrome/browser/ui/ash/multi_user/multi_user_warning_dialog.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/multi_user_warning_dialog.h"
 
 #include "ash/shell.h"
 #include "base/macros.h"
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 53 matching lines @@
 TeleportWarningView::~TeleportWarningView() {
 }
 
 // static
 void TeleportWarningView::ShowDialog(
     const base::Callback<void(bool)>& on_accept) {
   TeleportWarningView* dialog_view =
       new TeleportWarningView(on_accept);
   dialog_view->InitDialog();
   views::DialogDelegate::CreateDialogWidget(
-      dialog_view, ash::Shell::GetTargetRootWindow(), NULL);
+      dialog_view, ash::Shell::GetRootWindowForNewWindows(), NULL);
   views::Widget* widget = dialog_view->GetWidget();
   DCHECK(widget);
   widget->Show();
 }
 
 bool TeleportWarningView::Accept() {
   on_accept_.Run(no_show_checkbox_->checked());
   return true;
 }
 
@@ skipping 36 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // Factory function.
 
 void ShowMultiprofilesWarningDialog(
     const base::Callback<void(bool)>& on_accept) {
   TeleportWarningView::ShowDialog(on_accept);
 }
 
 }  // namespace chromeos