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diff --git a/ui/views/widget/tooltip_manager.h b/ui/views/widget/tooltip_manager.h
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+++ b/ui/views/widget/tooltip_manager.h
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+// Copyright (c) 2011 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_VIEWS_WIDGET_TOOLTIP_MANAGER_H_
+#define UI_VIEWS_WIDGET_TOOLTIP_MANAGER_H_
+#pragma once
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/string16.h"
+#include "views/views_export.h"
+
+namespace gfx {
+class Font;
+}  // namespace gfx
+
+namespace views {
+
+class View;
+
+// TooltipManager takes care of the wiring to support tooltips for Views. You
+// almost never need to interact directly with TooltipManager, rather look to
+// the various tooltip methods on View.
+class VIEWS_EXPORT TooltipManager {
+ public:
+  // Returns the height of tooltips. This should only be invoked from within
+  // GetTooltipTextOrigin.
+  static int GetTooltipHeight();
+
+  // Returns the default font used by tooltips.
+  static gfx::Font GetDefaultFont();
+
+  // Returns the maximum width of the tooltip. |x| and |y| give the location
+  // the tooltip is to be displayed on in screen coordinates.
+  static int GetMaxWidth(int x, int y);
+
+  TooltipManager() {}
+  virtual ~TooltipManager() {}
+
+  // Notification that the view hierarchy has changed in some way.
+  virtual void UpdateTooltip() = 0;
+
+  // Invoked when the tooltip text changes for the specified views.
+  virtual void TooltipTextChanged(View* view) = 0;
+
+  // Invoked when toolbar icon gets focus.
+  virtual void ShowKeyboardTooltip(View* view) = 0;
+
+  // Invoked when toolbar loses focus.
+  virtual void HideKeyboardTooltip() = 0;
+
+ protected:
+  // Trims the tooltip to fit, setting |text| to the clipped result,
+  // |max_width| to the width (in pixels) of the clipped text and |line_count|
+  // to the number of lines of text in the tooltip. |x| and |y| give the
+  // location of the tooltip in screen coordinates.
+  static void TrimTooltipToFit(string16* text,
+                               int* max_width,
+                               int* line_count,
+                               int x,
+                               int y);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_WIDGET_TOOLTIP_MANAGER_H_