Replace RenderArena with PartitionAlloc.

Source/core/rendering/RenderListMarker.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2010 Daniel Bates (dbates@intudata.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 1054 matching lines @@
 
 RenderListMarker::~RenderListMarker()
 {
     if (m_image)
         m_image->removeClient(this);
 }
 
 RenderListMarker* RenderListMarker::createAnonymous(RenderListItem* item)
 {
     Document* document = item->document();
-    RenderListMarker* renderer = new (document->renderArena()) RenderListMarker(item);
+    RenderListMarker* renderer = new RenderListMarker(item);
     renderer->setDocumentForAnonymous(document);
     return renderer;
 }
 
 void RenderListMarker::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
 {
     if (style() && (newStyle->listStylePosition() != style()->listStylePosition() || newStyle->listStyleType() != style()->listStyleType()))
         setNeedsLayoutAndPrefWidthsRecalc();
     
     RenderBox::styleWillChange(diff, newStyle);
@@ skipping 764 matching lines @@
 void RenderListMarker::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Rendering);
     RenderBox::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_text, "text");
     info.addMember(m_image, "image");
     info.addMember(m_listItem, "listItem");
 }
 
 } // namespace WebCore