Rework the way Widget::Init works:

chrome/browser/chromeos/login/background_view.cc

 // Copyright (c) 2011 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/login/background_view.h"
 
 #include <string>
 #include <vector>
 
 #include "base/string16.h"
@@ skipping 151 matching lines @@
   }
 }
 
 // static
 views::Widget* BackgroundView::CreateWindowContainingView(
     const gfx::Rect& bounds,
     const GURL& background_url,
     BackgroundView** view) {
   ResetXCursor();
 
-  Widget* window = Widget::CreateWidget(
-      Widget::CreateParams(Widget::CreateParams::TYPE_WINDOW));
-  window->Init(NULL, bounds);
+  Widget* window = Widget::CreateWidget();
+  Widget::CreateParams params(Widget::CreateParams::TYPE_WINDOW);
+  params.bounds = bounds;
+  window->Init(params);
   *view = new BackgroundView();
   (*view)->Init(background_url);
 
   if ((*view)->ScreenSaverEnabled())
     (*view)->ShowScreenSaver();
 
   window->SetContentsView(*view);
 
   (*view)->UpdateWindowType();
 
@@ skipping 369 matching lines @@
   boot_times_label_->SetText(ASCIIToWide(boot_times_text));
 }
 
 void BackgroundView::OnPolicyStateChanged(
     policy::CloudPolicySubsystem::PolicySubsystemState state,
     policy::CloudPolicySubsystem::ErrorDetails error_details) {
   UpdateEnterpriseInfo();
 }
 
 }  // namespace chromeos