Fix link's hover state if the link under scrollbar

third_party/WebKit/Source/core/layout/HitTestResult.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 80 matching lines @@
   Node* innerPossiblyPseudoNode() const {
     return m_innerPossiblyPseudoNode.get();
   }
   Element* innerElement() const;
 
   // If innerNode is an image map or image map area, return the associated image
   // node.
   Node* innerNodeOrImageMapImage() const;
 
   Element* URLElement() const { return m_innerURLElement.get(); }
-  Scrollbar* scrollbar() const { return m_scrollbar.get(); }
+  Scrollbar* scrollbar() const;
   bool isOverWidget() const { return m_isOverWidget; }
 
   // Forwarded from HitTestLocation
   bool isRectBasedTest() const { return m_hitTestLocation.isRectBasedTest(); }
 
   // The hit-tested point in the coordinates of the main frame.
   const LayoutPoint& pointInMainFrame() const {
     return m_hitTestLocation.point();
   }
   IntPoint roundedPointInMainFrame() const {
@@ skipping 97 matching lines @@
                         // border/padding area of a LayoutPart for example).
 
   mutable Member<NodeSet> m_listBasedTestResult;
 };
 
 }  // namespace blink
 
 WTF_ALLOW_CLEAR_UNUSED_SLOTS_WITH_MEM_FUNCTIONS(blink::HitTestResult);
 
 #endif  // HitTestResult_h