Revert "chromeos: Move files in //ash/common to //ash, part 2"

ash/wm/window_state_util.h

Index: ash/wm/window_state_util.h
diff --git a/ash/wm/window_state_util.h b/ash/wm/window_state_util.h
deleted file mode 100644
index aa603de351b981251a33e3580e77bc29ac0f551e..0000000000000000000000000000000000000000
--- a/ash/wm/window_state_util.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2014 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_UTIL_H_
-#define ASH_WM_WINDOW_STATE_UTIL_H_
-
-#include "ash/ash_export.h"
-
-namespace ash {
-namespace wm {
-class WindowState;
-class WindowStateDelegate;
-
-// Toggle the full screen from inside a WindowState::State handler.
-ASH_EXPORT void ToggleFullScreen(WindowState* window_state,
-                                 WindowStateDelegate* delegate);
-
-}  // namespace wm
-}  // namespace ash
-
-#endif  // ASH_WM_WINDOW_STATE_UTIL_H_