Have Attr constructor take a Document / Element reference

Source/core/dom/Attr.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 19 matching lines @@
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ScopedEventQueue.h"
 #include "core/dom/Text.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
-Attr::Attr(Element* element, const QualifiedName& name)
-    : ContainerNode(&element->document())
-    , m_element(element)
+Attr::Attr(Element& element, const QualifiedName& name)
+    : ContainerNode(&element.document())
+    , m_element(&element)
     , m_name(name)
     , m_ignoreChildrenChanged(0)
     , m_specified(true)
 {
     ScriptWrappable::init(this);
 }
 
-Attr::Attr(Document* document, const QualifiedName& name, const AtomicString& standaloneValue)
-    : ContainerNode(document)
+Attr::Attr(Document& document, const QualifiedName& name, const AtomicString& standaloneValue)
+    : ContainerNode(&document)
     , m_element(0)
     , m_name(name)
     , m_standaloneValue(standaloneValue)
     , m_ignoreChildrenChanged(0)
     , m_specified(true)
 {
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<Attr> Attr::create(Element* element, const QualifiedName& name)
+PassRefPtr<Attr> Attr::create(Element& element, const QualifiedName& name)
 {
     RefPtr<Attr> attr = adoptRef(new Attr(element, name));
     attr->createTextChild();
     return attr.release();
 }
 
-PassRefPtr<Attr> Attr::create(Document* document, const QualifiedName& name, const AtomicString& value)
+PassRefPtr<Attr> Attr::create(Document& document, const QualifiedName& name, const AtomicString& value)
 {
     RefPtr<Attr> attr = adoptRef(new Attr(document, name, value));
     attr->createTextChild();
     return attr.release();
 }
 
 Attr::~Attr()
 {
 }
 
@@ skipping 57 matching lines @@
         m_element->didModifyAttribute(qualifiedName(), value);
 }
 
 void Attr::setNodeValue(const String& v)
 {
     setValue(v, IGNORE_EXCEPTION);
 }
 
 PassRefPtr<Node> Attr::cloneNode(bool /*deep*/)
 {
-    RefPtr<Attr> clone = adoptRef(new Attr(&document(), qualifiedName(), value()));
+    RefPtr<Attr> clone = adoptRef(new Attr(document(), qualifiedName(), value()));
     cloneChildNodes(clone.get());
     return clone.release();
 }
 
 // DOM Section 1.1.1
 bool Attr::childTypeAllowed(NodeType type) const
 {
     return TEXT_NODE == type;
 }
 
@@ skipping 51 matching lines @@
 }
 
 void Attr::attachToElement(Element* element)
 {
     ASSERT(!m_element);
     m_element = element;
     m_standaloneValue = nullAtom;
 }
 
 }