Fix link's hover state if the link under scrollbar

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

 /*
  * Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
  * 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 198 matching lines @@
   if (HTMLAreaElement* area = imageAreaForImage()) {
     m_innerNode = area;
     m_innerPossiblyPseudoNode = area;
   }
 }
 
 void HitTestResult::setURLElement(Element* n) {
   m_innerURLElement = n;
 }
 
+Scrollbar* HitTestResult::scrollbar() const {
+  return (m_scrollbar.get() && m_scrollbar.get()->enabled()) ? m_scrollbar.get()

[bokan, 2016/11/02 21:36:34]

So I actually found out this already exists in
Scrollbar::shouldParticipateInHitTesting for Mac overlays but it requires a
little more plumbing that I did in https://codereview.chromium.org/2467693002/.
So leave this in but add a TODO(bokan) to remove and I'll remove it once my
patch lands and we can use that instead.

+                                                             : nullptr;
+}
+
 void HitTestResult::setScrollbar(Scrollbar* s) {
   m_scrollbar = s;
 }
 
 LocalFrame* HitTestResult::innerNodeFrame() const {
   if (m_innerNode)
     return m_innerNode->document().frame();
   return nullptr;
 }
 
@@ skipping 271 matching lines @@
   else if (isHTMLMapElement(m_innerNode))
     imageMapImageElement = toHTMLMapElement(m_innerNode)->imageElement();
 
   if (!imageMapImageElement)
     return m_innerNode.get();
 
   return imageMapImageElement;
 }
 
 }  // namespace blink