Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLTrackElement.cpp

 /*
  * Copyright (C) 2011 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 33 matching lines @@
 static String urlForLoggingTrack(const KURL& url)
 {
     static const unsigned maximumURLLengthForLogging = 128;
 
     if (url.string().length() < maximumURLLengthForLogging)
         return url.string();
     return url.string().substring(0, maximumURLLengthForLogging) + "...";
 }
 #endif
 
-inline HTMLTrackElement::HTMLTrackElement(const QualifiedName& tagName, Document* document)
+inline HTMLTrackElement::HTMLTrackElement(const QualifiedName& tagName, Document& document)
     : HTMLElement(tagName, document)
     , m_loadTimer(this, &HTMLTrackElement::loadTimerFired)
 {
     LOG(Media, "HTMLTrackElement::HTMLTrackElement - %p", this);
     ASSERT(hasTagName(trackTag));
     ScriptWrappable::init(this);
 }
 
 HTMLTrackElement::~HTMLTrackElement()
 {
     if (m_track)
         m_track->clearClient();
 }
 
-PassRefPtr<HTMLTrackElement> HTMLTrackElement::create(const QualifiedName& tagName, Document* document)
+PassRefPtr<HTMLTrackElement> HTMLTrackElement::create(const QualifiedName& tagName, Document& document)
 {
     return adoptRef(new HTMLTrackElement(tagName, document));
 }
 
 Node::InsertionNotificationRequest HTMLTrackElement::insertedInto(ContainerNode* insertionPoint)
 {
     LOG(Media, "HTMLTrackElement::insertedInto");
 
     // Since we've moved to a new parent, we may now be able to load.
     scheduleLoad();
@@ skipping 277 matching lines @@
 HTMLMediaElement* HTMLTrackElement::mediaElement() const
 {
     Element* parent = parentElement();
     if (parent && parent->isMediaElement())
         return toHTMLMediaElement(parentNode());
     return 0;
 }
 
 }