Oilpan: move LiveNodeList collections to the heap.

Source/core/html/HTMLFormElement.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, 2009 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 523 matching lines @@
 }
 
 void HTMLFormElement::didAssociateByParser()
 {
     if (!m_didFinishParsingChildren)
         return;
     m_hasElementsAssociatedByParser = true;
     UseCounter::count(document(), UseCounter::FormAssociationByParser);
 }
 
-PassRefPtr<HTMLCollection> HTMLFormElement::elements()
+PassRefPtrWillBeRawPtr<HTMLCollection> HTMLFormElement::elements()
 {
     return ensureCachedHTMLCollection(FormControls);
 }
 
 void HTMLFormElement::collectAssociatedElements(Node& root, FormAssociatedElement::List& elements) const
 {
     elements.clear();
     for (HTMLElement* element = Traversal<HTMLElement>::firstWithin(root); element; element = Traversal<HTMLElement>::next(*element)) {
         FormAssociatedElement* associatedElement = 0;
         if (element->isFormControlElement())
@@ skipping 156 matching lines @@
         return;
     PastNamesMap::iterator end = m_pastNamesMap->end();
     for (PastNamesMap::iterator it = m_pastNamesMap->begin(); it != end; ++it) {
         if (it->value.get() == &element) {
             it->value = nullptr;
             // Keep looping. Single element can have multiple names.
         }
     }
 }
 
-void HTMLFormElement::getNamedElements(const AtomicString& name, Vector<RefPtr<Element> >& namedItems)
+void HTMLFormElement::getNamedElements(const AtomicString& name, WillBeHeapVector<RefPtrWillBeMember<Element> >& namedItems)
 {
     // http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#dom-form-nameditem
     elements()->namedItems(name, namedItems);
 
     Element* elementFromPast = elementFromPastNamesMap(name);
     if (namedItems.size() && namedItems.first() != elementFromPast) {
         addToPastNamesMap(namedItems.first().get(), name);
     } else if (elementFromPast && namedItems.isEmpty()) {
         namedItems.append(elementFromPast);
         UseCounter::count(document(), UseCounter::FormNameAccessForPastNamesMap);
@@ skipping 11 matching lines @@
     document().formController().restoreControlStateIn(*this);
     m_didFinishParsingChildren = true;
 }
 
 void HTMLFormElement::copyNonAttributePropertiesFromElement(const Element& source)
 {
     m_wasDemoted = static_cast<const HTMLFormElement&>(source).m_wasDemoted;
     HTMLElement::copyNonAttributePropertiesFromElement(source);
 }
 
-void HTMLFormElement::anonymousNamedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtr<RadioNodeList>& returnValue0, bool& returnValue1Enabled, RefPtr<Element>& returnValue1)
+void HTMLFormElement::anonymousNamedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtrWillBeRawPtr<RadioNodeList>& returnValue0, bool& returnValue1Enabled, RefPtr<Element>& returnValue1)
 {
     // Call getNamedElements twice, first time check if it has a value
     // and let HTMLFormElement update its cache.
     // See issue: 867404
     {
-        Vector<RefPtr<Element> > elements;
+        WillBeHeapVector<RefPtrWillBeMember<Element> > elements;
         getNamedElements(name, elements);
         if (elements.isEmpty())
             return;
     }
 
     // Second call may return different results from the first call,
     // but if the first the size cannot be zero.
-    Vector<RefPtr<Element> > elements;
+    WillBeHeapVector<RefPtrWillBeMember<Element> > elements;
     getNamedElements(name, elements);
     ASSERT(!elements.isEmpty());
 
     if (elements.size() == 1) {
         returnValue1Enabled = true;
-        returnValue1 = elements.at(0);
+        // FIXME: Oilpan: remove the call to |get| when Element becomes [GarbageCollected].
+        returnValue1 = elements.at(0).get();
         return;
     }
 
     bool onlyMatchImg = !elements.isEmpty() && isHTMLImageElement(*elements.first());
     returnValue0Enabled = true;
     returnValue0 = radioNodeList(name, onlyMatchImg);
 }
 
 void HTMLFormElement::setDemoted(bool demoted)
 {
     if (demoted)
         UseCounter::count(document(), UseCounter::DemotedFormElement);
     m_wasDemoted = demoted;
 }
 
 } // namespace