Oilpan: Prepare to support garbage-collected Node in WebNode hierarchy.

Source/web/WebDocument.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 236 matching lines @@
 }
 
 WebReferrerPolicy WebDocument::referrerPolicy() const
 {
     return static_cast<WebReferrerPolicy>(constUnwrap<Document>()->referrerPolicy());
 }
 
 WebElement WebDocument::createElement(const WebString& tagName)
 {
     TrackExceptionState exceptionState;
+#if ENABLE(OILPAN)
+    // FIXME: Document::createElement should return a raw pointer.
+    WebElement element(unwrap<Document>()->createElement(tagName, exceptionState).get());
+#else
     WebElement element(unwrap<Document>()->createElement(tagName, exceptionState));
+#endif
     if (exceptionState.hadException())
         return WebElement();
     return element;
 }
 
 WebAXObject WebDocument::accessibilityObject() const
 {
     const Document* document = constUnwrap<Document>();
     return WebAXObject(document->axObjectCache()->getOrCreate(document->renderer()));
 }
@@ skipping 26 matching lines @@
     Document* document = unwrap<Document>();
     Dictionary dictionary(options, isolate);
     TrackExceptionState exceptionState;
     ScriptValue constructor = document->registerElement(ScriptState::current(isolate), name, dictionary, exceptionState, CustomElement::EmbedderNames);
     ec = exceptionState.code();
     if (exceptionState.hadException())
         return v8::Handle<v8::Value>();
     return constructor.v8Value();
 }
 
-WebDocument::WebDocument(const PassRefPtr<Document>& elem)
+WebDocument::WebDocument(const PassRefPtrWillBeRawPtr<Document>& elem)
     : WebNode(elem)
 {
 }
 
-WebDocument& WebDocument::operator=(const PassRefPtr<Document>& elem)
+WebDocument& WebDocument::operator=(const PassRefPtrWillBeRawPtr<Document>& elem)
 {
     m_private = elem;
     return *this;
 }
 
-WebDocument::operator PassRefPtr<Document>() const
+WebDocument::operator PassRefPtrWillBeRawPtr<Document>() const
 {
     return toDocument(m_private.get());
 }
 
 } // namespace blink