Replace RenderArena with PartitionAlloc

Source/core/html/track/TextTrackCue.cpp

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2011, 2012, 2013 Apple 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.
@@ skipping 162 matching lines @@
 }
 
 const AtomicString& TextTrackCueBox::textTrackCueBoxShadowPseudoId()
 {
     DEFINE_STATIC_LOCAL(const AtomicString, trackDisplayBoxShadowPseudoId, ("-webkit-media-text-track-display", AtomicString::ConstructFromLiteral));
     return trackDisplayBoxShadowPseudoId;
 }
 
 RenderObject* TextTrackCueBox::createRenderer(RenderStyle*)
 {
-    return new (document()->renderArena()) RenderTextTrackCue(this);
+    return new RenderTextTrackCue(this);
 }
 
 // ----------------------------
 
 TextTrackCue::TextTrackCue(ScriptExecutionContext* context, double start, double end, const String& content)
     : m_startTime(start)
     , m_endTime(end)
     , m_content(content)
     , m_linePosition(undefinedPosition)
     , m_computedLinePosition(undefinedPosition)
@@ skipping 987 matching lines @@
         return false;
     if (m_cueSize != cue.size())
         return false;
     if (align() != cue.align())
         return false;
 
     return true;
 }
 
 } // namespace WebCore