Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLButtonElement.cpp

Index: Source/core/html/HTMLButtonElement.cpp
diff --git a/Source/core/html/HTMLButtonElement.cpp b/Source/core/html/HTMLButtonElement.cpp
index 0f55e0e343b35ef4840ec0f549a96b16b744729f..b1ee00adc5a998b9138f4ea995f4f4160f567588 100644
--- a/Source/core/html/HTMLButtonElement.cpp
+++ b/Source/core/html/HTMLButtonElement.cpp
@@ -39,7 +39,7 @@ namespace WebCore {
 
 using namespace HTMLNames;
 
-inline HTMLButtonElement::HTMLButtonElement(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
+inline HTMLButtonElement::HTMLButtonElement(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
     : HTMLFormControlElement(tagName, document, form)
     , m_type(SUBMIT)
     , m_isActivatedSubmit(false)
@@ -48,7 +48,7 @@ inline HTMLButtonElement::HTMLButtonElement(const QualifiedName& tagName, Docume
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<HTMLButtonElement> HTMLButtonElement::create(const QualifiedName& tagName, Document* document, HTMLFormElement* form)
+PassRefPtr<HTMLButtonElement> HTMLButtonElement::create(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
 {
     return adoptRef(new HTMLButtonElement(tagName, document, form));
 }