Convert some Shape code to use references

Source/core/rendering/RenderBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 595 matching lines @@
     virtual RenderBox* createAnonymousBoxWithSameTypeAs(const RenderObject*) const
     {
         ASSERT_NOT_REACHED();
         return 0;
     }
 
     bool hasSameDirectionAs(const RenderBox* object) const { return style()->direction() == object->style()->direction(); }
 
     ShapeOutsideInfo* shapeOutsideInfo() const
     {
-        return ShapeOutsideInfo::isEnabledFor(this) ? ShapeOutsideInfo::info(this) : 0;
+        return ShapeOutsideInfo::isEnabledFor(*this) ? ShapeOutsideInfo::info(*this) : 0;
     }
 
     void markShapeOutsideDependentsForLayout()
     {
         if (isFloating())
             removeFloatingOrPositionedChildFromBlockLists();
     }
 
 protected:
     virtual void willBeDestroyed() OVERRIDE;
@@ skipping 147 matching lines @@
         if (UNLIKELY(inlineBoxWrapper() != 0))
             deleteLineBoxWrapper();
     }
 
     ensureRareData().m_inlineBoxWrapper = boxWrapper;
 }
 
 } // namespace WebCore
 
 #endif // RenderBox_h