Oilpan: move LiveNodeList collections to the heap.

Source/core/html/HTMLOptionsCollection.cpp

Index: Source/core/html/HTMLOptionsCollection.cpp
diff --git a/Source/core/html/HTMLOptionsCollection.cpp b/Source/core/html/HTMLOptionsCollection.cpp
index fdf20fe71a3bef525f0720e13a133c6eaaa76671..f16a6d6d0b70cca811a1494f210220067a579516 100644
--- a/Source/core/html/HTMLOptionsCollection.cpp
+++ b/Source/core/html/HTMLOptionsCollection.cpp
@@ -64,9 +64,9 @@ void HTMLOptionsCollection::supportedPropertyNames(Vector<String>& names)
     }
 }
 
-PassRefPtr<HTMLOptionsCollection> HTMLOptionsCollection::create(ContainerNode& select, CollectionType)
+PassRefPtrWillBeRawPtr<HTMLOptionsCollection> HTMLOptionsCollection::create(ContainerNode& select, CollectionType)
 {
-    return adoptRef(new HTMLOptionsCollection(select));
+    return adoptRefWillBeNoop(new HTMLOptionsCollection(select));
 }
 
 void HTMLOptionsCollection::add(PassRefPtrWillBeRawPtr<HTMLOptionElement> element, ExceptionState& exceptionState)
@@ -123,9 +123,9 @@ void HTMLOptionsCollection::setLength(unsigned length, ExceptionState& exception
     toHTMLSelectElement(ownerNode()).setLength(length, exceptionState);
 }
 
-void HTMLOptionsCollection::namedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtr<NodeList>& returnValue0, bool& returnValue1Enabled, RefPtr<Element>& returnValue1)
+void HTMLOptionsCollection::namedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtrWillBeRawPtr<NodeList>& returnValue0, bool& returnValue1Enabled, RefPtr<Element>& returnValue1)
 {
-    Vector<RefPtr<Element> > namedItems;
+    WillBeHeapVector<RefPtrWillBeMember<Element> > namedItems;
     this->namedItems(name, namedItems);
 
     if (!namedItems.size())
@@ -133,7 +133,8 @@ void HTMLOptionsCollection::namedGetter(const AtomicString& name, bool& returnVa
 
     if (namedItems.size() == 1) {
         returnValue1Enabled = true;
-        returnValue1 = namedItems.at(0);
+        // FIXME: Oilpan: remove the call to |get| when Element becomes [GarbageCollected].
+        returnValue1 = namedItems.at(0).get();
         return;
     }