Replace RenderArena with PartitionAlloc.

Source/core/dom/NodeRenderingContext.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Google 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
@@ skipping 240 matching lines @@
 
     moveToFlowThreadIfNeeded();
 
     if (!element->rendererIsNeeded(*this))
         return;
 
     RenderObject* parentRenderer = this->parentRenderer();
     RenderObject* nextRenderer = this->nextRenderer();
 
     Document* document = element->document();
-    RenderObject* newRenderer = element->createRenderer(document->renderArena(), m_style.get());
+    RenderObject* newRenderer = element->createRenderer(m_style.get());
     if (!newRenderer)
         return;
 
     if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) {
         newRenderer->destroy();
         return;
     }
 
     // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style
     // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail.
@@ skipping 25 matching lines @@
     ASSERT(parentRenderer);
     Document* document = textNode->document();
 
     if (resetStyleInheritance())
         m_style = document->styleResolver()->defaultStyleForElement();
     else
         m_style = parentRenderer->style();
 
     if (!textNode->textRendererIsNeeded(*this))
         return;
-    RenderText* newRenderer = textNode->createTextRenderer(document->renderArena(), m_style.get());
+    RenderText* newRenderer = textNode->createTextRenderer(m_style.get());
     if (!newRenderer)
         return;
     if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) {
         newRenderer->destroy();
         return;
     }
 
     // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style
     // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail.
     newRenderer->setFlowThreadState(parentRenderer->flowThreadState());
 
     RenderObject* nextRenderer = this->nextRenderer();
     textNode->setRenderer(newRenderer);
     // Parent takes care of the animations, no need to call setAnimatableStyle.
     newRenderer->setStyle(m_style.release());
     parentRenderer->addChild(newRenderer, nextRenderer);
 }
 
 }