Move GetRootWindowController() to root_window_controller.h

ash/touch/touch_observer_hud.cc

 // 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 "ash/touch/touch_observer_hud.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/root_window_settings.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
-#include "ash/wm/property_util.h"
 #include "ui/aura/root_window.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 
@@ skipping 120 matching lines @@
                           internal::kShellWindowId_OverlayContainer));
 
   RootWindowController* controller = GetRootWindowController(root_window_);
   SetHudForRootWindowController(controller);
 
   root_window_->AddPreTargetHandler(this);
 }
 
 }  // namespace internal
 }  // namespace ash