chromeos: nukes window_state_aura

ash/wm/window_state_aura.h

-// Copyright 2016 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_STATE_AURA_H_
-#define ASH_WM_WINDOW_STATE_AURA_H_
-
-#include "ash/ash_export.h"
-
-namespace aura {
-class Window;
-}
-
-namespace ash {
-namespace wm {
-
-class WindowState;
-
-// Returns the WindowState for active window. Returns |NULL|
-// if there is no active window.
-ASH_EXPORT WindowState* GetActiveWindowState();
-
-// Returns the WindowState for |window|. Creates WindowState
-// if it didn't exist. The settings object is owned by |window|.
-ASH_EXPORT WindowState* GetWindowState(aura::Window* window);
-
-// const version of GetWindowState.
-ASH_EXPORT const WindowState* GetWindowState(const aura::Window* window);
-
-}  // namespace wm
-}  // namespace ash
-
-#endif  // ASH_WM_WINDOW_STATE_AURA_H_