Replace RenderArena with PartitionAlloc.

Source/core/svg/SVGClipPathElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. 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 96 matching lines @@
 {
     SVGStyledTransformableElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
 
     if (changedByParser)
         return;
 
     if (RenderObject* object = renderer())
         object->setNeedsLayout(true);
 }
 
-RenderObject* SVGClipPathElement::createRenderer(RenderArena* arena, RenderStyle*)
+RenderObject* SVGClipPathElement::createRenderer(RenderStyle*)
 {
-    return new (arena) RenderSVGResourceClipper(this);
+    return new RenderSVGResourceClipper(this);
 }
 
 }