FIELDSET element: |elements| IDL attribute should return an HTMLCollection, not HTMLFormControlsCol…

third_party/WebKit/Source/core/html/HTMLFieldSetElement.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, 2010 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 93 matching lines @@
 }
 
 LayoutObject* HTMLFieldSetElement::createLayoutObject(const ComputedStyle&) {
   return new LayoutFieldset(this);
 }
 
 HTMLLegendElement* HTMLFieldSetElement::legend() const {
   return Traversal<HTMLLegendElement>::firstChild(*this);
 }
 
-HTMLFormControlsCollection* HTMLFieldSetElement::elements() {
-  return ensureCachedCollection<HTMLFormControlsCollection>(FormControls);
+HTMLCollection* HTMLFieldSetElement::elements() {
+  return ensureCachedCollection<HTMLCollection>(FormControls);
 }
 
 void HTMLFieldSetElement::refreshElementsIfNeeded() const {
   uint64_t docVersion = document().domTreeVersion();
   if (m_documentVersion == docVersion)
     return;
 
   m_documentVersion = docVersion;
 
   m_associatedElements.clear();
@@ skipping 15 matching lines @@
     const {
   refreshElementsIfNeeded();
   return m_associatedElements;
 }
 
 int HTMLFieldSetElement::tabIndex() const {
   return HTMLElement::tabIndex();
 }
 
 }  // namespace blink