Replace RenderArena with PartitionAlloc.

Source/core/html/HTMLAppletElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2006, 2008, 2009 Apple 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 19 matching lines @@
 class HTMLAppletElement FINAL : public HTMLPlugInImageElement {
 public:
     static PassRefPtr<HTMLAppletElement> create(const QualifiedName&, Document*, bool createdByParser);
 
 private:
     HTMLAppletElement(const QualifiedName&, Document*, bool createdByParser);
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     
     virtual bool rendererIsNeeded(const NodeRenderingContext&) OVERRIDE;
-    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*) OVERRIDE;
+    virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 
     virtual RenderWidget* renderWidgetForJSBindings() const;
     virtual void updateWidget(PluginCreationOption) OVERRIDE;
 
     bool canEmbedJava() const;
 
     virtual bool shouldRegisterAsNamedItem() const OVERRIDE { return true; }
     virtual bool shouldRegisterAsExtraNamedItem() const OVERRIDE { return true; }
 };
 
 }
 
 #endif