Replace RenderArena with PartitionAlloc.

Source/core/html/shadow/TextFieldDecorationElement.cpp

 /*
  * Copyright (C) 2012 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 144 matching lines @@
     RefPtr<RenderStyle> originalStyle = originalStyleForRenderer();
     RefPtr<RenderStyle> style = RenderStyle::clone(originalStyle.get());
     RenderStyle* inputStyle = hostInput()->renderStyle();
     ASSERT(inputStyle);
     style->setWidth(Length(inputStyle->fontSize(), Fixed));
     style->setHeight(Length(inputStyle->fontSize(), Fixed));
     updateImage();
     return style.release();
 }
 
-RenderObject* TextFieldDecorationElement::createRenderer(RenderArena* arena, RenderStyle*)
+RenderObject* TextFieldDecorationElement::createRenderer(RenderStyle*)
 {
-    RenderImage* image = new (arena) RenderImage(this);
+    RenderImage* image = new RenderImage(this);
     image->setImageResource(RenderImageResource::create());
     return image;
 }
 
 void TextFieldDecorationElement::attach(const AttachContext& context)
 {
     HTMLDivElement::attach(context);
     updateImage();
 }
 
@@ skipping 49 matching lines @@
 bool TextFieldDecorationElement::willRespondToMouseClickEvents()
 {
     const HTMLInputElement* input = hostInput();
     if (!input->isDisabledOrReadOnly())
         return true;
 
     return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
 } // namespace WebCore