Have TreeScrope::adoptIfNeeded() take a reference instead of a pointer

Source/core/dom/Element.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)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1913 matching lines @@
     if (index != kNotFound) {
         if (oldAttrNode)
             detachAttrNodeFromElementWithValue(oldAttrNode.get(), elementData->attributeItem(index)->value());
         else
             oldAttrNode = Attr::create(document(), attrNode->qualifiedName(), elementData->attributeItem(index)->value());
     }
 
     setAttributeInternal(index, attrNode->qualifiedName(), attrNode->value(), NotInSynchronizationOfLazyAttribute);
 
     attrNode->attachToElement(this);
-    treeScope().adoptIfNeeded(attrNode);
+    treeScope().adoptIfNeeded(*attrNode);
     ensureAttrNodeListForElement(this).append(attrNode);
 
     return oldAttrNode.release();
 }
 
 PassRefPtr<Attr> Element::setAttributeNodeNS(Attr* attr, ExceptionState& es)
 {
     return setAttributeNode(attr, es);
 }
 
@@ skipping 1110 matching lines @@
         return findAttrNodeInList(*attrNodeList, name);
     return 0;
 }
 
 PassRefPtr<Attr> Element::ensureAttr(const QualifiedName& name)
 {
     AttrNodeList& attrNodeList = ensureAttrNodeListForElement(this);
     RefPtr<Attr> attrNode = findAttrNodeInList(attrNodeList, name);
     if (!attrNode) {
         attrNode = Attr::create(*this, name);
-        treeScope().adoptIfNeeded(attrNode.get());
+        treeScope().adoptIfNeeded(*attrNode);
         attrNodeList.append(attrNode);
     }
     return attrNode.release();
 }
 
 void Element::detachAttrNodeFromElementWithValue(Attr* attrNode, const AtomicString& value)
 {
     ASSERT(hasSyntheticAttrChildNodes());
     attrNode->detachFromElementWithValue(value);
 
@@ skipping 349 matching lines @@
     // Before doing so, we need to resolve issues in HTMLSelectElement::recalcListItems
     // and RenderMenuList::setText. See also https://bugs.webkit.org/show_bug.cgi?id=88405
     if (hasTagName(optionTag) || hasTagName(optgroupTag))
         return false;
     if (FullscreenElementStack::isActiveFullScreenElement(this))
         return false;
     return true;
 }
 
 } // namespace WebCore