Move Aura to UI subdir.

aura/window_manager.h

-// 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 AURA_WINDOW_MANAGER_H_
-#define AURA_WINDOW_MANAGER_H_
-#pragma once
-
-#include "base/logging.h"
-#include "ui/gfx/point.h"
-
-namespace aura {
-
-class Window;
-class MouseEvent;
-
-// An object that filters events sent to an owner window, potentially performing
-// adjustments to the window's position, size and z-index.
-//
-// TODO(beng): Make this into an interface so we can have specializations for
-//             different types of Window and product.
-class WindowManager {
- public:
-  explicit WindowManager(Window* owner);
-  ~WindowManager();
-
-  // Try to handle |event| (before the owner's delegate gets a chance to).
-  // Returns true if the event was handled by the WindowManager and should not
-  // be forwarded to the owner's delegate.
-  bool OnMouseEvent(MouseEvent* event);
-
- private:
-  // Moves the owner window and all of its parents to the front of their
-  // respective z-orders.
-  void MoveWindowToFront();
-
-  Window* owner_;
-  gfx::Point mouse_down_offset_;
-  gfx::Point window_location_;
-  int window_component_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowManager);
-};
-
-}  // namespace aura
-
-#endif  // AURA_WINDOW_MANAGER_H_