Replace RenderArena with PartitionAlloc

Source/core/html/shadow/PasswordGeneratorButtonElement.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 113 matching lines @@
     RenderStyle* inputStyle = hostInput()->renderStyle();
     ASSERT(inputStyle);
     style->setWidth(Length(inputStyle->fontSize(), Fixed));
     style->setHeight(Length(inputStyle->fontSize(), Fixed));
     updateImage();
     return style.release();
 }
 
 RenderObject* PasswordGeneratorButtonElement::createRenderer(RenderStyle*)
 {
-    RenderImage* image = new (document()->renderArena()) RenderImage(this);
+    RenderImage* image = new RenderImage(this);
     image->setImageResource(RenderImageResource::create());
     return image;
 }
 
 void PasswordGeneratorButtonElement::attach(const AttachContext& context)
 {
     HTMLDivElement::attach(context);
     updateImage();
 }
 
@@ skipping 57 matching lines @@
 bool PasswordGeneratorButtonElement::willRespondToMouseClickEvents()
 {
     const HTMLInputElement* input = hostInput();
     if (!input->isDisabledOrReadOnly())
         return true;
 
     return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
 } // namespace WebCore