Eliminates all ash dependencies from WindowModalityController.

ash/wm/window_modality_controller.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 ASH_WM_WINDOW_MODALITY_CONTROLLER_H_
 #define ASH_WM_WINDOW_MODALITY_CONTROLLER_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "ui/aura/env_observer.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/events/event_handler.h"
 
 namespace ui {
 class LocatedEvent;
 }
 
 namespace ash {
 
-namespace wm {
-
 // Sets the modal parent for the child.
 ASH_EXPORT void SetModalParent(aura::Window* child, aura::Window* parent);
 
 // Returns the modal transient child of |window|, or NULL if |window| does not
 // have any modal transient children.
 ASH_EXPORT aura::Window* GetModalTransient(aura::Window* window);
 
-}
-
 namespace internal {
 
 // WindowModalityController is an event filter that consumes events sent to
 // windows that are the transient parents of window-modal windows. This filter
 // must be added to the CompoundEventFilter so that activation works properly.
 class WindowModalityController : public ui::EventHandler,
                                  public aura::EnvObserver,
                                  public aura::WindowObserver {
  public:
   WindowModalityController();
@@ skipping 20 matching lines @@
 
   std::vector<aura::Window*> windows_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowModalityController);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_MODALITY_CONTROLLER_H_