Revert 132856 - Aura/ash split: Remove hacks and get chrome linking without ash.

ui/aura/desktop/desktop_stacking_client.cc

Index: ui/aura/desktop/desktop_stacking_client.cc
===================================================================
--- ui/aura/desktop/desktop_stacking_client.cc	(revision 132861)
+++ ui/aura/desktop/desktop_stacking_client.cc	(working copy)
@@ -1,24 +0,0 @@
-// 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.
-
-#include "ui/aura/desktop/desktop_stacking_client.h"
-
-#include "ui/aura/root_window.h"
-#include "ui/aura/window.h"
-
-namespace aura {
-
-DesktopStackingClient::DesktopStackingClient() {
-  aura::client::SetStackingClient(this);
-}
-
-DesktopStackingClient::~DesktopStackingClient() {
-  aura::client::SetStackingClient(NULL);
-}
-
-Window* DesktopStackingClient::GetDefaultParent(Window* window) {
-  return window->GetRootWindow();
-}
-
-}  // namespace aura