Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLSummaryElement.cpp

Index: Source/core/html/HTMLSummaryElement.cpp
diff --git a/Source/core/html/HTMLSummaryElement.cpp b/Source/core/html/HTMLSummaryElement.cpp
index e41599d9c1544d9c2e629328d3b6808c419ddb49..886314350a0a994b3e1057a76d97fa4086594a2c 100644
--- a/Source/core/html/HTMLSummaryElement.cpp
+++ b/Source/core/html/HTMLSummaryElement.cpp
@@ -35,14 +35,14 @@ namespace WebCore {
 
 using namespace HTMLNames;
 
-PassRefPtr<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document* document)
+PassRefPtr<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document& document)
 {
     RefPtr<HTMLSummaryElement> summary = adoptRef(new HTMLSummaryElement(tagName, document));
     summary->ensureUserAgentShadowRoot();
     return summary.release();
 }
 
-HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document* document)
+HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document& document)
     : HTMLElement(tagName, document)
 {
     ASSERT(hasTagName(summaryTag));
@@ -55,8 +55,8 @@ RenderObject* HTMLSummaryElement::createRenderer(RenderStyle*)
 
 void HTMLSummaryElement::didAddUserAgentShadowRoot(ShadowRoot* root)
 {
-    root->appendChild(DetailsMarkerControl::create(&document()));
-    root->appendChild(HTMLContentElement::create(&document()));
+    root->appendChild(DetailsMarkerControl::create(document()));
+    root->appendChild(HTMLContentElement::create(document()));
 }
 
 HTMLDetailsElement* HTMLSummaryElement::detailsElement() const