Replace RenderArena with PartitionAlloc.

Source/core/html/shadow/MeterShadowElement.h

 /*
  * 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 37 matching lines @@
     virtual bool rendererIsNeeded(const NodeRenderingContext&);
 };
 
 class MeterInnerElement FINAL : public MeterShadowElement {
 public:
     static PassRefPtr<MeterInnerElement> create(Document*);
 
 private:
     MeterInnerElement(Document*);
     virtual bool rendererIsNeeded(const NodeRenderingContext&) OVERRIDE;
-    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*) OVERRIDE;
+    virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 };
 
 class MeterBarElement FINAL : public MeterShadowElement {
 private:
     MeterBarElement(Document*);
 
 public:
     static PassRefPtr<MeterBarElement> create(Document*);
 };
 
 class MeterValueElement FINAL : public MeterShadowElement {
 public:
     static PassRefPtr<MeterValueElement> create(Document*);
     void setWidthPercentage(double);
     void updatePseudo() { setPseudo(valuePseudoId()); }
 
 private:
     MeterValueElement(Document*);
     const AtomicString& valuePseudoId() const;
 };
 
 }
 
 #endif // MeterShadowElement_h