It is time.

ui/wm/public/scoped_tooltip_disabler.h

-// 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 UI_WM_PUBLIC_SCOPED_TOOLTIP_DISABLER_H_
-#define UI_WM_PUBLIC_SCOPED_TOOLTIP_DISABLER_H_
-
-#include "ui/aura/window_observer.h"
-
-namespace aura {
-namespace client {
-
-// Use to temporarily disable tooltips.
-class AURA_EXPORT ScopedTooltipDisabler : aura::WindowObserver {
- public:
-  // Disables tooltips on |window| (does nothing if |window| is NULL). Tooltips
-  // are reenabled from the destructor when there are no most outstanding
-  // ScopedTooltipDisablers for |window|.
-  explicit ScopedTooltipDisabler(aura::Window* window);
-  virtual ~ScopedTooltipDisabler();
-
- private:
-  // Reenables the tooltips on the TooltipClient.
-  void EnableTooltips();
-
-  // aura::WindowObserver:
-  virtual void OnWindowDestroying(aura::Window* window) override;
-
-  // The RootWindow to disable Tooltips on; NULL if the Window passed to the
-  // constructor was not in a root or the root has been destroyed.
-  aura::Window* root_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedTooltipDisabler);
-};
-
-}  // namespace client
-}  // namespace aura
-
-#endif  // UI_WM_PUBLIC_SCOPED_TOOLTIP_DISABLER_H_