Make sure the rootNode of a LiveNodeListBase is always a ContainerNode

Source/core/html/HTMLOptionsCollection.cpp

 /*
  * Copyright (C) 2006, 2011, 2012 Apple Computer, Inc.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 12 matching lines @@
 
 #include "bindings/v8/ExceptionMessages.h"
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/NamedNodesCollection.h"
 #include "core/html/HTMLOptionElement.h"
 #include "core/html/HTMLSelectElement.h"
 
 namespace WebCore {
 
-HTMLOptionsCollection::HTMLOptionsCollection(Node* select)
+HTMLOptionsCollection::HTMLOptionsCollection(ContainerNode* select)
     : HTMLCollection(select, SelectOptions, DoesNotOverrideItemAfter)
 {
     ASSERT(select->hasTagName(HTMLNames::selectTag));
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<HTMLOptionsCollection> HTMLOptionsCollection::create(Node* select, CollectionType)
+PassRefPtr<HTMLOptionsCollection> HTMLOptionsCollection::create(ContainerNode* select, CollectionType)
 {
     return adoptRef(new HTMLOptionsCollection(select));
 }
 
 void HTMLOptionsCollection::add(PassRefPtr<HTMLOptionElement> element, ExceptionState& exceptionState)
 {
     add(element, length(), exceptionState);
 }
 
 void HTMLOptionsCollection::add(PassRefPtr<HTMLOptionElement> element, int index, ExceptionState& exceptionState)
@@ skipping 76 matching lines @@
     if (!value) {
         exceptionState.throwTypeError(ExceptionMessages::failedToSet(String::number(index), "HTMLOptionsCollection", "The element provided was not an HTMLOptionElement."));
         return true;
     }
     base->setOption(index, value.get(), exceptionState);
     return true;
 }
 
 } //namespace