Replace RenderArena with PartitionAlloc.

Source/core/svg/SVGTRefElement.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2011. 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 207 matching lines @@
     if (SVGURIReference::isKnownAttribute(attrName)) {
         buildPendingResource();
         if (RenderObject* renderer = this->renderer())
             RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
         return;
     }
 
     ASSERT_NOT_REACHED();
 }
 
-RenderObject* SVGTRefElement::createRenderer(RenderArena* arena, RenderStyle*)
+RenderObject* SVGTRefElement::createRenderer(RenderStyle*)
 {
-    return new (arena) RenderSVGInline(this);
+    return new RenderSVGInline(this);
 }
 
 bool SVGTRefElement::childShouldCreateRenderer(const NodeRenderingContext& childContext) const
 {
     return childContext.node()->isInShadowTree();
 }
 
 bool SVGTRefElement::rendererIsNeeded(const NodeRenderingContext& context)
 {
     if (parentNode()
@@ skipping 48 matching lines @@
 }
 
 void SVGTRefElement::removedFrom(ContainerNode* rootParent)
 {
     SVGStyledElement::removedFrom(rootParent);
     if (rootParent->inDocument())
         m_targetListener->detach();
 }
 
 }