Second attempt at moving the StackingClient to a property on the RootWindow.

ui/aura/test/test_stacking_client.h

Index: ui/aura/test/test_stacking_client.h
===================================================================
--- ui/aura/test/test_stacking_client.h	(revision 114527)
+++ ui/aura/test/test_stacking_client.h	(working copy)
@@ -1,41 +0,0 @@
-// 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.
-
-#ifndef UI_AURA_TEST_TEST_STACKING_CLIENT_H_
-#define UI_AURA_TEST_TEST_STACKING_CLIENT_H_
-#pragma once
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/aura/client/stacking_client.h"
-
-namespace aura {
-class Window;
-
-namespace test {
-
-class TestStackingClient : public StackingClient {
- public:
-  // Callers should allocate a TestStackingClient on the heap and then forget
-  // about it -- the c'tor passes ownership of the TestStackingClient to the
-  // static Desktop object.
-  TestStackingClient();
-  virtual ~TestStackingClient();
-
-  Window* default_container() { return default_container_.get(); }
-
- private:
-  // Overridden from StackingClient:
-  virtual void AddChildToDefaultParent(Window* window) OVERRIDE;
-
-  scoped_ptr<Window> default_container_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestStackingClient);
-};
-
-}  // namespace test
-}  // namespace aura
-
-#endif  // UI_AURA_TEST_TEST_STACKING_CLIENT_H_