Oilpan: Replace RefPtrs to Node and its subclasses in core/html with Oilpan transitin types.

Source/core/html/HTMLSelectElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * 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, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
@@ skipping 185 matching lines @@
 int HTMLSelectElement::activeSelectionEndListIndex() const
 {
     if (m_activeSelectionEndIndex >= 0)
         return m_activeSelectionEndIndex;
     return lastSelectedListIndex();
 }
 
 void HTMLSelectElement::add(HTMLElement* element, HTMLElement* before, ExceptionState& exceptionState)
 {
     // Make sure the element is ref'd and deref'd so we don't leak it.
-    RefPtr<HTMLElement> protectNewChild(element);
+    RefPtrWillBeRawPtr<HTMLElement> protectNewChild(element);
 
     if (!element || !(isHTMLOptionElement(element) || isHTMLOptGroupElement(element) || isHTMLHRElement(element)))
         return;
 
     insertBefore(element, before, exceptionState);
     setNeedsValidityCheck();
 }
 
 void HTMLSelectElement::addBeforeOptionAtIndex(HTMLElement* element, int beforeIndex, ExceptionState& exceptionState)
 {
@@ skipping 226 matching lines @@
 Element* HTMLSelectElement::item(unsigned index)
 {
     return options()->item(index);
 }
 
 void HTMLSelectElement::setOption(unsigned index, HTMLOptionElement* option, ExceptionState& exceptionState)
 {
     if (index > maxSelectItems - 1)
         index = maxSelectItems - 1;
     int diff = index - length();
-    RefPtr<HTMLElement> before = nullptr;
+    RefPtrWillBeRawPtr<HTMLElement> before = nullptr;
     // Out of array bounds? First insert empty dummies.
     if (diff > 0) {
         setLength(index, exceptionState);
         // Replace an existing entry?
     } else if (diff < 0) {
         before = toHTMLElement(options()->item(index+1));
         remove(index);
     }
     // Finally add the new element.
     if (!exceptionState.hadException()) {
@@ skipping 1194 matching lines @@
 
 void HTMLSelectElement::trace(Visitor* visitor)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_listItems);
 #endif
     HTMLFormControlElementWithState::trace(visitor);
 }
 
 } // namespace