Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLTrackElement.cpp

Index: Source/core/html/HTMLTrackElement.cpp
diff --git a/Source/core/html/HTMLTrackElement.cpp b/Source/core/html/HTMLTrackElement.cpp
index 4b55f78ff52e4ccc999aa3e8d520db91ecbfb5d6..dfbbc45d041c332160f215fa60f153c9aa7df443 100644
--- a/Source/core/html/HTMLTrackElement.cpp
+++ b/Source/core/html/HTMLTrackElement.cpp
@@ -51,7 +51,7 @@ static String urlForLoggingTrack(const KURL& url)
 }
 #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)
 {
@@ -66,7 +66,7 @@ HTMLTrackElement::~HTMLTrackElement()
         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));
 }