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

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 637 matching lines @@
 {
     return inQuirksMode() ? "BackCompat" : "CSS1Compat";
 }
 
 void Document::setDoctype(PassRefPtr<DocumentType> docType)
 {
     // This should never be called more than once.
     ASSERT(!m_docType || !docType);
     m_docType = docType;
     if (m_docType) {
-        this->adoptIfNeeded(m_docType.get());
+        this->adoptIfNeeded(*m_docType);
         if (m_docType->publicId().startsWith("-//wapforum//dtd xhtml mobile 1.", /* caseSensitive */ false))
             m_isMobileDocument = true;
     }
     // Doctype affects the interpretation of the stylesheets.
     clearStyleResolver();
 }
 
 DOMImplementation* Document::implementation()
 {
     if (!m_implementation)
@@ skipping 281 matching lines @@
                 return 0;
             }
         }
         if (source->parentNode()) {
             source->parentNode()->removeChild(source.get(), es);
             if (es.hadException())
                 return 0;
         }
     }
 
-    this->adoptIfNeeded(source.get());
+    this->adoptIfNeeded(*source);
 
     return source;
 }
 
 bool Document::hasValidNamespaceForElements(const QualifiedName& qName)
 {
     // These checks are from DOM Core Level 2, createElementNS
     // http://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-DocCrElNS
     if (!qName.prefix().isEmpty() && qName.namespaceURI().isNull()) // createElementNS(null, "html:div")
         return false;
@@ skipping 4309 matching lines @@
 void Document::modifiedStyleSheet(StyleSheet* sheet, RecalcStyleTime when, StyleResolverUpdateMode updateMode)
 {
     if (!isActive())
         return;
 
     styleEngine()->modifiedStyleSheet(sheet);
     styleResolverChanged(when, updateMode);
 }
 
 } // namespace WebCore