Remove TextTrackCueBox

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 24 matching lines @@
 #include "bindings/v8/ExceptionMessages.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/events/Event.h"
 #include "core/html/track/TextTrack.h"
 #include "core/html/track/TextTrackCueList.h"
 
 namespace WebCore {
 
 static const int invalidCueIndex = -1;
 
-// ----------------------------
-
-TextTrackCueBox::TextTrackCueBox(Document& document)
-    : HTMLDivElement(document)
-{
-}
-
-// ----------------------------
-
 bool TextTrackCue::isInfiniteOrNonNumber(double value, const char* method, ExceptionState& exceptionState)
 {
     if (!std::isfinite(value)) {
         exceptionState.throwTypeError(ExceptionMessages::failedToSet(method, "TextTrackCue", ExceptionMessages::notAFiniteNumber(value)));
         return true;
     }
     return false;
 }
 
 TextTrackCue::TextTrackCue(double start, double end)
@@ skipping 118 matching lines @@
     if (!active)
         removeDisplayTree();
 }
 
 const AtomicString& TextTrackCue::interfaceName() const
 {
     return EventTargetNames::TextTrackCue;
 }
 
 } // namespace WebCore