chromeos: Move files in //ash/common to //ash

ash/common/wm/window_state_delegate.h

-// Copyright 2013 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_COMMON_WM_WINDOW_STATE_DELEGATE_H_
-#define ASH_COMMON_WM_WINDOW_STATE_DELEGATE_H_
-
-#include "ash/ash_export.h"
-#include "base/macros.h"
-
-namespace ash {
-namespace wm {
-class WindowState;
-
-class ASH_EXPORT WindowStateDelegate {
- public:
-  WindowStateDelegate();
-  virtual ~WindowStateDelegate();
-
-  // Invoked when the user uses Shift+F4/F4 to toggle the window fullscreen
-  // state. If the window is not fullscreen and the window supports immersive
-  // fullscreen ToggleFullscreen() should put the window into immersive
-  // fullscreen instead of the default fullscreen type. The caller
-  // (ash::wm::WindowState) falls backs to the default implementation if this
-  // returns false.
-  virtual bool ToggleFullscreen(WindowState* window_state);
-
-  // Invoked when workspace fullscreen state changes and a window may need to
-  // reassert its always on top state. Returns true if delegate has handled this
-  // and no additional work is needed, false otherwise.
-  virtual bool RestoreAlwaysOnTop(WindowState* window_state);
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WindowStateDelegate);
-};
-
-}  // namespace wm
-}  // namespace ash
-
-#endif  // ASH_COMMON_WM_WINDOW_STATE_DELEGATE_H_