Fix hottracking on button views...

views/controls/button/custom_button.h

 // Copyright (c) 2006-2008 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 VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 #define VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 
 #include "app/animation.h"
 #include "views/controls/button/button.h"
 
@@ skipping 54 matching lines @@
   virtual bool OnMouseDragged(const MouseEvent& e);
   virtual void OnMouseReleased(const MouseEvent& e, bool canceled);
   virtual void OnMouseEntered(const MouseEvent& e);
   virtual void OnMouseMoved(const MouseEvent& e);
   virtual void OnMouseExited(const MouseEvent& e);
   virtual bool OnKeyPressed(const KeyEvent& e);
   virtual bool OnKeyReleased(const KeyEvent& e);
   virtual void OnDragDone();
   virtual void ShowContextMenu(int x, int y, bool is_mouse_gesture);
   virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
+  virtual void SetHotTracked(bool flag);
+  virtual bool IsHotTracked() const;
+  virtual void WillLoseFocus();
 
   // Overridden from AnimationDelegate:
   virtual void AnimationProgressed(const Animation* animation);
 
   // Returns true if the button should become pressed when the user
   // holds the mouse down over the button. For this implementation,
   // we simply return IsTriggerableEvent(e).
   virtual bool ShouldEnterPushedState(const MouseEvent& e);
 
   // The button state (defined in implementation)
@@ skipping 16 matching lines @@
 
   // Mouse event flags which can trigger button actions.
   int triggerable_event_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomButton);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_