Oilpan: add [WillBeGarbageCollected] for Element.

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 2213 matching lines @@
     Node* p = parentNode();
     if (!p) {
         exceptionState.throwDOMException(NoModificationAllowedError, "This element has no parent node.");
         return;
     }
     if (!p->isElementNode()) {
         exceptionState.throwDOMException(NoModificationAllowedError, "This element's parent is of type '" + p->nodeName() + "', which is not an element node.");
         return;
     }
 
-    RefPtr<Element> parent = toElement(p);
+    RefPtrWillBeRawPtr<Element> parent = toElement(p);
     RefPtr<Node> prev = previousSibling();
     RefPtr<Node> next = nextSibling();
 
     RefPtrWillBeRawPtr<DocumentFragment> fragment = createFragmentForInnerOuterHTML(html, parent.get(), AllowScriptingContent, "outerHTML", exceptionState);
     if (exceptionState.hadException())
         return;
 
     parent->replaceChild(fragment.release(), this, exceptionState);
     RefPtr<Node> node = next ? next->previousSibling() : 0;
     if (!exceptionState.hadException() && node && node->isTextNode())
@@ skipping 66 matching lines @@
     return toElement(returnValue);
 }
 
 void Element::insertAdjacentText(const String& where, const String& text, ExceptionState& exceptionState)
 {
     insertAdjacent(where, document().createTextNode(text).get(), exceptionState);
 }
 
 void Element::insertAdjacentHTML(const String& where, const String& markup, ExceptionState& exceptionState)
 {
-    RefPtr<Element> contextElement = contextElementForInsertion(where, this, exceptionState);
+    RefPtrWillBeRawPtr<Element> contextElement = contextElementForInsertion(where, this, exceptionState);
     if (!contextElement)
         return;
 
     RefPtrWillBeRawPtr<DocumentFragment> fragment = createFragmentForInnerOuterHTML(markup, contextElement.get(), AllowScriptingContent, "insertAdjacentHTML", exceptionState);
     if (!fragment)
         return;
     insertAdjacent(where, fragment.get(), exceptionState);
 }
 
 String Element::innerText()
@@ skipping 969 matching lines @@
 
 void Element::trace(Visitor* visitor)
 {
     if (hasRareData())
         visitor->trace(elementRareData());
 
     ContainerNode::trace(visitor);
 }
 
 } // namespace WebCore