Replace RenderArena with PartitionAlloc.

Source/core/rendering/RenderTableSection.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1398 matching lines @@
 {
     ASSERT(table()->collapseBorders());
     HashMap<pair<const RenderTableCell*, int>, CollapsedBorderValue>::iterator it = m_cellsCollapsedBorders.find(make_pair(cell, side));
     ASSERT(it != m_cellsCollapsedBorders.end());
     return it->value;
 }
 
 RenderTableSection* RenderTableSection::createAnonymousWithParentRenderer(const RenderObject* parent)
 {
     RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(parent->style(), TABLE_ROW_GROUP);
-    RenderTableSection* newSection = new (parent->renderArena()) RenderTableSection(0);
+    RenderTableSection* newSection = new RenderTableSection(0);
     newSection->setDocumentForAnonymous(parent->document());
     newSection->setStyle(newStyle.release());
     return newSection;
 }
 
 void RenderTableSection::setLogicalPositionForCell(RenderTableCell* cell, unsigned effectiveColumn) const
 {
     LayoutPoint oldCellLocation = cell->location();
 
     LayoutPoint cellLocation(0, m_rowPos[cell->rowIndex()]);
@@ skipping 28 matching lines @@
     info.addMember(logicalHeight, "logicalHeight");
 }
 
 void RenderTableSection::CellStruct::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, PlatformMemoryTypes::Rendering);
     info.addMember(cells, "cells");
 }
 
 } // namespace WebCore