Oilpan: Reapply: Remove all the RefPtrs and most of the raw pointers to style

Source/core/dom/DOMImplementation.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 218 matching lines @@
     }
 
     if (doctype)
         doc->appendChild(doctype);
     if (documentElement)
         doc->appendChild(documentElement.release());
 
     return doc.release();
 }
 
-PassRefPtr<CSSStyleSheet> DOMImplementation::createCSSStyleSheet(const String&, const String& media)
+PassRefPtrWillBeRawPtr<CSSStyleSheet> DOMImplementation::createCSSStyleSheet(const String&, const String& media)
 {
     // FIXME: Title should be set.
     // FIXME: Media could have wrong syntax, in which case we should generate an exception.
-    RefPtr<CSSStyleSheet> sheet = CSSStyleSheet::create(StyleSheetContents::create(strictCSSParserContext()));
+    RefPtrWillBeRawPtr<CSSStyleSheet> sheet = CSSStyleSheet::create(StyleSheetContents::create(strictCSSParserContext()));
     sheet->setMediaQueries(MediaQuerySet::create(media));
     return sheet;
 }
 
 bool DOMImplementation::isXMLMIMEType(const String& mimeType)
 {
     if (equalIgnoringCase(mimeType, "text/xml")
         || equalIgnoringCase(mimeType, "application/xml")
         || equalIgnoringCase(mimeType, "text/xsl"))
         return true;
@@ skipping 135 matching lines @@
         return TextDocument::create(init);
     if (type == "image/svg+xml")
         return SVGDocument::create(init);
     if (isXMLMIMEType(type))
         return XMLDocument::create(init);
 
     return HTMLDocument::create(init);
 }
 
 }