HashTraits<RefPtr<P> >::PeekType should be raw pointer for better performance

Source/core/html/HTMLAnchorElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 598 matching lines @@
 static RootEditableElementMap& rootEditableElementMap()
 {
     DEFINE_STATIC_LOCAL(RootEditableElementMap, map, ());
     return map;
 }
 
 Element* HTMLAnchorElement::rootEditableElementForSelectionOnMouseDown() const
 {
     if (!m_hasRootEditableElementForSelectionOnMouseDown)
         return 0;
-    return rootEditableElementMap().get(this).get();
+    return rootEditableElementMap().get(this);
 }
 
 void HTMLAnchorElement::clearRootEditableElementForSelectionOnMouseDown()
 {
     if (!m_hasRootEditableElementForSelectionOnMouseDown)
         return;
     rootEditableElementMap().remove(this);
     m_hasRootEditableElementForSelectionOnMouseDown = false;
 }
 
@@ skipping 76 matching lines @@
         double mouseDownDuration = convertDOMTimeStampToSeconds(event->timeStamp() - m_mouseDownTimestamp);
 
         HistogramSupport::histogramCustomCounts("MouseEventPrefetch.MouseDownDuration_Click", mouseDownDuration * 1000, 0, 10000, 100);
     }
 
     m_mouseOverTimestamp = 0;
     m_mouseDownTimestamp = 0;
 }
 
 }