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

chrome/test/base/browser_with_test_window_test.h

Index: chrome/test/base/browser_with_test_window_test.h
===================================================================
--- chrome/test/base/browser_with_test_window_test.h	(revision 124527)
+++ chrome/test/base/browser_with_test_window_test.h	(working copy)
@@ -18,6 +18,7 @@
 
 #if defined(USE_AURA)
 namespace aura {
+class RootWindow;
 namespace test {
 class TestActivationClient;
 class TestStackingClient;
@@ -124,6 +125,7 @@
   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