Replace RenderArena with PartitionAlloc

Source/core/svg/SVGSVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 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 461 matching lines @@
     // they should instead depend on the RenderView.
     // https://bugs.webkit.org/show_bug.cgi?id=103493
     if (document()->documentElement() == this)
         return true;
     return Element::rendererIsNeeded(context);
 }
 
 RenderObject* SVGSVGElement::createRenderer(RenderStyle*)
 {
     if (isOutermostSVGSVGElement())
-        return new (document()->renderArena()) RenderSVGRoot(this);
+        return new RenderSVGRoot(this);
 
-    return new (document()->renderArena()) RenderSVGViewportContainer(this);
+    return new RenderSVGViewportContainer(this);
 }
 
 Node::InsertionNotificationRequest SVGSVGElement::insertedInto(ContainerNode* rootParent)
 {
     if (rootParent->inDocument()) {
         document()->accessSVGExtensions()->addTimeContainer(this);
 
         // Animations are started at the end of document parsing and after firing the load event,
         // but if we miss that train (deferred programmatic element insertion for example) we need
         // to initialize the time container here.
@@ skipping 273 matching lines @@
             continue;
 
         Element* element = toElement(node);
         if (element->getIdAttribute() == id)
             return element;
     }
     return 0;
 }
 
 }