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diff --git a/ui/views/controls/glow_hover_controller.h b/ui/views/controls/glow_hover_controller.h
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+++ b/ui/views/controls/glow_hover_controller.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_CONTROLS_GLOW_HOVER_CONTROLLER_H_
+#define UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_
+#pragma once
+
+#include "ui/base/animation/animation_delegate.h"
+#include "ui/base/animation/slide_animation.h"
+#include "ui/views/views_export.h"
+
+namespace gfx {
+class Canvas;
+class Point;
+}
+
+class SkBitmap;
+
+namespace views {
+
+class View;
+
+// GlowHoverController is responsible for drawing a hover effect as is used by
+// the tabstrip. Typical usage:
+//   OnMouseEntered() -> invoke Show().
+//   OnMouseMoved()   -> invoke SetLocation().
+//   OnMouseExited()  -> invoke Hide().
+//   OnPaint()        -> if ShouldDraw() returns true invoke Draw().
+// Internally GlowHoverController uses an animation to animate the glow and
+// invokes SchedulePaint() back on the View as necessary.
+class VIEWS_EXPORT GlowHoverController : public ui::AnimationDelegate {
+ public:
+  explicit GlowHoverController(views::View* view);
+  virtual ~GlowHoverController();
+
+  // Sets the AnimationContainer used by the animation.
+  void SetAnimationContainer(ui::AnimationContainer* container);
+
+  // Sets the location of the hover, relative to the View passed to the
+  // constructor.
+  void SetLocation(const gfx::Point& location);
+
+  // Initiates showing the hover.
+  void Show();
+
+  // Hides the hover.
+  void Hide();
+
+  // Hides the hover immediately.
+  void HideImmediately();
+
+  // Returns the value of the animation.
+  double GetAnimationValue() const;
+
+  // Returns true if there is something to be drawn. Use this instead of
+  // invoking Draw() if creating |mask_image| is expensive.
+  bool ShouldDraw() const;
+
+  // If the hover is currently visible it is drawn to the supplied canvas.
+  // |mask_image| is used to determine what parts of the canvas to draw on.
+  void Draw(gfx::Canvas* canvas, const SkBitmap& mask_image) const;
+
+  // ui::AnimationDelegate overrides:
+  virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
+  virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
+
+ private:
+  // View we're drawing to.
+  views::View* view_;
+
+  // Opacity of the glow ramps up over time.
+  ui::SlideAnimation animation_;
+
+  // Location of the glow, relative to view.
+  gfx::Point location_;
+
+  DISALLOW_COPY_AND_ASSIGN(GlowHoverController);
+};
+
+}  // namespace views
+
+#endif  // UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_