Replace RenderArena with PartitionAlloc.

Source/core/html/HTMLMeterElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 37 matching lines @@
 {
 }
 
 PassRefPtr<HTMLMeterElement> HTMLMeterElement::create(const QualifiedName& tagName, Document* document)
 {
     RefPtr<HTMLMeterElement> meter = adoptRef(new HTMLMeterElement(tagName, document));
     meter->ensureUserAgentShadowRoot();
     return meter;
 }
 
-RenderObject* HTMLMeterElement::createRenderer(RenderArena* arena, RenderStyle* style)
+RenderObject* HTMLMeterElement::createRenderer(RenderStyle* style)
 {
     if (hasAuthorShadowRoot() || !document()->page()->theme()->supportsMeter(style->appearance()))
         return RenderObject::createObject(this, style);
 
-    return new (arena) RenderMeter(this);
+    return new RenderMeter(this);
 }
 
 bool HTMLMeterElement::childShouldCreateRenderer(const NodeRenderingContext& childContext) const
 {
     return childContext.isOnUpperEncapsulationBoundary() && HTMLElement::childShouldCreateRenderer(childContext);
 }
 
 void HTMLMeterElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == valueAttr || name == minAttr || name == maxAttr || name == lowAttr || name == highAttr || name == optimumAttr)
@@ skipping 162 matching lines @@
     RefPtr<MeterBarElement> bar = MeterBarElement::create(document());
     m_value = MeterValueElement::create(document());
     m_value->setWidthPercentage(0);
     m_value->updatePseudo();
     bar->appendChild(m_value, ASSERT_NO_EXCEPTION);
 
     inner->appendChild(bar, ASSERT_NO_EXCEPTION);
 }
 
 } // namespace