Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/shadow/HTMLShadowElement.cpp

Index: Source/core/html/shadow/HTMLShadowElement.cpp
diff --git a/Source/core/html/shadow/HTMLShadowElement.cpp b/Source/core/html/shadow/HTMLShadowElement.cpp
index 1e2aa45d3855c7ede80743237722585a348bdcfa..a6cf5298a6955022edc171388550002866b60847 100644
--- a/Source/core/html/shadow/HTMLShadowElement.cpp
+++ b/Source/core/html/shadow/HTMLShadowElement.cpp
@@ -38,14 +38,14 @@ namespace WebCore {
 
 class Document;
 
-inline HTMLShadowElement::HTMLShadowElement(const QualifiedName& tagName, Document* document)
+inline HTMLShadowElement::HTMLShadowElement(const QualifiedName& tagName, Document& document)
     : InsertionPoint(tagName, document)
 {
     ASSERT(hasTagName(HTMLNames::shadowTag));
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<HTMLShadowElement> HTMLShadowElement::create(const QualifiedName& tagName, Document* document)
+PassRefPtr<HTMLShadowElement> HTMLShadowElement::create(const QualifiedName& tagName, Document& document)
 {
     return adoptRef(new HTMLShadowElement(tagName, document));
 }