It is time.

ui/wm/public/tooltip_client.h

-// Copyright (c) 2012 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_TOOLTIP_CLIENT_H_
-#define UI_WM_PUBLIC_TOOLTIP_CLIENT_H_
-
-#include "ui/aura/aura_export.h"
-#include "ui/gfx/font.h"
-
-namespace aura {
-class Window;
-namespace client {
-
-class ScopedTooltipDisabler;
-
-class AURA_EXPORT TooltipClient {
- public:
-  // Informs the shell tooltip manager of change in tooltip for window |target|.
-  virtual void UpdateTooltip(Window* target) = 0;
-
-  // Sets the time after which the tooltip is hidden for Window |target|. If
-  // |timeout_in_ms| is <= 0, the tooltip is shown indefinitely.
-  virtual void SetTooltipShownTimeout(Window* target, int timeout_in_ms) = 0;
-
- protected:
-  // Enables/Disables tooltips. This is treated as a reference count. Consumers
-  // must use ScopedTooltipDisabler to enable/disabled tooltips.
-  virtual void SetTooltipsEnabled(bool enable) = 0;
-
- private:
-  friend class ScopedTooltipDisabler;
-};
-
-AURA_EXPORT void SetTooltipClient(Window* root_window,
-                                  TooltipClient* client);
-AURA_EXPORT TooltipClient* GetTooltipClient(Window* root_window);
-
-// Sets the text for the tooltip. The id is used to determine uniqueness when
-// the text does not change. For example, if the tooltip text does not change,
-// but the id does then the position of the tooltip is updated.
-AURA_EXPORT void SetTooltipText(Window* window,
-                                base::string16* tooltip_text);
-AURA_EXPORT void SetTooltipId(Window* window, void* id);
-AURA_EXPORT const base::string16 GetTooltipText(Window* window);
-AURA_EXPORT const void* GetTooltipId(Window* window);
-
-}  // namespace client
-}  // namespace aura
-
-#endif  // UI_WM_PUBLIC_TOOLTIP_CLIENT_H_