Replace RenderArena with PartitionAlloc.

Source/core/html/shadow/MediaControlElements.cpp

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 654 matching lines @@
 {
 }
 
 PassRefPtr<MediaControlTextTrackContainerElement> MediaControlTextTrackContainerElement::create(Document* document)
 {
     RefPtr<MediaControlTextTrackContainerElement> element = adoptRef(new MediaControlTextTrackContainerElement(document));
     element->hide();
     return element.release();
 }
 
-RenderObject* MediaControlTextTrackContainerElement::createRenderer(RenderArena* arena, RenderStyle*)
+RenderObject* MediaControlTextTrackContainerElement::createRenderer(RenderStyle*)
 {
-    return new (arena) RenderTextTrackContainerElement(this);
+    return new RenderTextTrackContainerElement(this);
 }
 
 const AtomicString& MediaControlTextTrackContainerElement::textTrackContainerElementShadowPseudoId()
 {
     DEFINE_STATIC_LOCAL(AtomicString, id, ("-webkit-media-text-track-container", AtomicString::ConstructFromLiteral));
     return id;
 }
 
 const AtomicString& MediaControlTextTrackContainerElement::shadowPseudoId() const
 {
@@ skipping 124 matching lines @@
     CueList activeCues = mediaElement->currentlyActiveCues();
     for (size_t i = 0; i < activeCues.size(); ++i) {
         TextTrackCue* cue = activeCues[i].data();
         cue->videoSizeDidChange(m_videoDisplaySize.size());
     }
 }
 
 // ----------------------------
 
 } // namespace WebCore