Replace RenderArena with PartitionAlloc.

Source/core/html/shadow/ProgressShadowElement.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 52 matching lines @@
     setPseudo(pseudoId);
 }
 
 PassRefPtr<ProgressInnerElement> ProgressInnerElement::create(Document* document)
 {
     RefPtr<ProgressInnerElement> element = adoptRef(new ProgressInnerElement(document));
     element->setPseudo(AtomicString("-webkit-progress-inner-element", AtomicString::ConstructFromLiteral));
     return element.release();
 }
 
-RenderObject* ProgressInnerElement::createRenderer(RenderArena* arena, RenderStyle*)
+RenderObject* ProgressInnerElement::createRenderer(RenderStyle*)
 {
-    return new (arena) RenderProgress(this);
+    return new RenderProgress(this);
 }
 
 bool ProgressInnerElement::rendererIsNeeded(const NodeRenderingContext& context)
 {
     if (progressElement()->hasAuthorShadowRoot())
         return HTMLDivElement::rendererIsNeeded(context);
 
     RenderObject* progressRenderer = progressElement()->renderer();
     return progressRenderer && !progressRenderer->style()->hasAppearance() && HTMLDivElement::rendererIsNeeded(context);    
 }
 
 void ProgressValueElement::setWidthPercentage(double width)
 {
     setInlineStyleProperty(CSSPropertyWidth, width, CSSPrimitiveValue::CSS_PERCENTAGE);
 }
 
 }