Remove the singleton instance get/delete methods from RootWindow (yay)

chrome/test/base/browser_with_test_window_test.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_TEST_BASE_BROWSER_WITH_TEST_WINDOW_TEST_H_
 #define CHROME_TEST_BASE_BROWSER_WITH_TEST_WINDOW_TEST_H_
 #pragma once
 
 #include "base/message_loop.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/test_browser_window.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class GURL;
 
 #if defined(USE_AURA)
 namespace aura {
+class RootWindow;
 namespace test {
 class TestActivationClient;
 class TestStackingClient;
 }
 }
 #endif
 
 namespace content {
 class NavigationController;
 class WebContents;
@@ skipping 86 matching lines @@
   content::TestBrowserThread file_user_blocking_thread_;
 
   scoped_ptr<TestingProfile> profile_;
   scoped_ptr<TestBrowserWindow> window_;
   scoped_ptr<Browser> browser_;
 
   MockRenderProcessHostFactory rph_factory_;
   TestRenderViewHostFactory rvh_factory_;
 
 #if defined(USE_AURA)
+  scoped_ptr<aura::RootWindow> root_window_;
   scoped_ptr<aura::test::TestActivationClient> test_activation_client_;
   scoped_ptr<aura::test::TestStackingClient> test_stacking_client_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserWithTestWindowTest);
 };
 
 #endif  // CHROME_TEST_BASE_BROWSER_WITH_TEST_WINDOW_TEST_H_