Moves maintaining root_window_for_new_windows_ to Shell

chrome/browser/chromeos/profiles/multiprofiles_session_aborted_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/chromeos/profiles/multiprofiles_session_aborted_dialog.h"
 
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "base/macros.h"
@@ skipping 54 matching lines @@
 
 MultiprofilesSessionAbortedView::~MultiprofilesSessionAbortedView() {
 }
 
 // static
 void MultiprofilesSessionAbortedView::ShowDialog(
     const std::string& user_email) {
   MultiprofilesSessionAbortedView* dialog_view =
       new MultiprofilesSessionAbortedView();
   views::DialogDelegate::CreateDialogWidget(
-      dialog_view, ash::Shell::GetTargetRootWindow(), NULL);
+      dialog_view, ash::Shell::GetRootWindowForNewWindows(), NULL);
   dialog_view->InitDialog(user_email);
   views::Widget* widget = dialog_view->GetWidget();
   DCHECK(widget);
   widget->Show();
 
   // Since this is the last thing the user ever sees, we also hide all system
   // tray's from the screen.
   std::vector<ash::RootWindowController*> controllers =
       ash::Shell::GetAllRootWindowControllers();
   for (ash::RootWindowController* controller : controllers) {
@@ skipping 65 matching lines @@
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // Factory function.
 
 void ShowMultiprofilesSessionAbortedDialog(const std::string& user_email) {
   MultiprofilesSessionAbortedView::ShowDialog(user_email);
 }
 
 }  // namespace chromeos