Move LiveNodeListBase class to its own header

Source/core/dom/LiveNodeListBase.cpp

Index: Source/core/dom/LiveNodeListBase.cpp
diff --git a/Source/core/dom/LiveNodeList.cpp b/Source/core/dom/LiveNodeListBase.cpp
similarity index 87%
copy from Source/core/dom/LiveNodeList.cpp
copy to Source/core/dom/LiveNodeListBase.cpp
index d43ce2f541815711ce5d4b231688acc7fa8415be..a4b120205760058afa1853005fb5efffc7935c59 100644
--- a/Source/core/dom/LiveNodeList.cpp
+++ b/Source/core/dom/LiveNodeListBase.cpp
@@ -3,6 +3,7 @@
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -21,9 +22,8 @@
  */
 
 #include "config.h"
-#include "core/dom/LiveNodeList.h"
+#include "core/dom/LiveNodeListBase.h"
 
-#include "core/dom/Element.h"
 #include "core/html/HTMLCollection.h"
 
 namespace WebCore {
@@ -48,14 +48,4 @@ void LiveNodeListBase::invalidateIdNameCacheMaps() const
     static_cast<const HTMLCollection*>(this)->invalidateIdNameCacheMaps();
 }
 
-Node* LiveNodeList::virtualOwnerNode() const
-{
-    return ownerNode();
-}
-
-void LiveNodeList::invalidateCache(Document*) const
-{
-    m_collectionIndexCache.invalidate();
-}
-
 } // namespace WebCore