Introduce visiblePositionOf() with PositionWithAffinity as replacement of VisiblePosition constructo

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 368 matching lines @@
     if (!m_innerURLElement)
         return KURL();
     return m_innerURLElement->hrefURL();
 }
 
 bool HitTestResult::isLiveLink() const
 {
     return m_innerURLElement && m_innerURLElement->isLiveLink();
 }
 
+// TODO(yosin) We should move |HitTestResult::isMisspelled()| to
+// "SelectionController.cpp" as static function.
 bool HitTestResult::isMisspelled() const
 {
     if (!innerNode() || !innerNode()->layoutObject())
         return false;
-    VisiblePosition pos(innerNode()->layoutObject()->positionForPoint(localPoint()));
+    VisiblePosition pos = visiblePositionOf(innerNode()->layoutObject()->positionForPoint(localPoint()));
     if (pos.isNull())
         return false;
     return m_innerNode->document().markers().markersInRange(
         EphemeralRange(pos.deepEquivalent().parentAnchoredEquivalent()), DocumentMarker::MisspellingMarkers()).size() > 0;
 }
 
 bool HitTestResult::isOverLink() const
 {
     return m_innerURLElement && m_innerURLElement->isLink();
 }
@@ skipping 120 matching lines @@
     else if (isHTMLMapElement(m_innerNode))
         imageMapImageElement = toHTMLMapElement(m_innerNode)->imageElement();
 
     if (!imageMapImageElement)
         return m_innerNode.get();
 
     return imageMapImageElement;
 }
 
 } // namespace blink