Remove the dup function

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 490 matching lines @@
   // Update the HitTestResult as if the supplied node had been hit in normal
   // point-based hit-test.
   // Note that we don't know the local point after a rect-based hit-test, but we
   // never use it so shouldn't bother with the cost of computing it.
   resolved_inner_node->GetLayoutObject()->UpdateHitTestResult(*this,
                                                               LayoutPoint());
   DCHECK(!IsRectBasedTest());
 }
 
 Element* HitTestResult::InnerElement() const {
-  for (Node* node = inner_node_.Get(); node;
-       node = FlatTreeTraversal::Parent(*node)) {
-    if (node->IsElementNode())
-      return ToElement(node);
-  }
-
-  return nullptr;
+  if (!inner_node_)
+    return nullptr;
+  if (inner_node_->IsElementNode())
+    return ToElement(inner_node_);
+  return FlatTreeTraversal::ParentElement(*inner_node_);
 }
 
 Node* HitTestResult::InnerNodeOrImageMapImage() const {
   if (!inner_node_)
     return nullptr;
 
   HTMLImageElement* image_map_image_element = nullptr;
   if (isHTMLAreaElement(inner_node_))
     image_map_image_element = toHTMLAreaElement(inner_node_)->ImageElement();
   else if (isHTMLMapElement(inner_node_))
     image_map_image_element = toHTMLMapElement(inner_node_)->ImageElement();
 
   if (!image_map_image_element)
     return inner_node_.Get();
 
   return image_map_image_element;
 }
 
 }  // namespace blink