Replace RenderArena with PartitionAlloc.

Source/core/html/FileInputType.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 140 matching lines @@
         settings.acceptFileExtensions = input->acceptFileExtensions();
         settings.selectedFiles = m_fileList->paths();
 #if ENABLE(MEDIA_CAPTURE)
         settings.capture = input->capture();
 #endif
         chrome->runOpenPanel(input->document()->frame(), newFileChooser(settings));
     }
     event->setDefaultHandled();
 }
 
-RenderObject* FileInputType::createRenderer(RenderArena* arena, RenderStyle*) const
+RenderObject* FileInputType::createRenderer(RenderStyle*) const
 {
-    return new (arena) RenderFileUploadControl(element());
+    return new RenderFileUploadControl(element());
 }
 
 bool FileInputType::canSetStringValue() const
 {
     return false;
 }
 
 bool FileInputType::canChangeFromAnotherType() const
 {
     // Don't allow the type to be changed to file after the first type change.
@@ skipping 235 matching lines @@
     StringBuilder names;
     for (size_t i = 0; i < listSize; ++i) {
         names.append(fileList->item(i)->name());
         if (i != listSize - 1)
             names.append('\n');
     }
     return names.toString();
 }
 
 } // namespace WebCore