Exposing raw DOM lists from wrappers

tools/dom/templates/html/impl/impl_Node.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 /**
  * Lazy implementation of the child nodes of an element that does not request
  * the actual child nodes of an element until strictly necessary greatly
  * improving performance for the typical cases where it is not required.
  */
-class _ChildNodeListLazy extends ListBase<Node> {
+class _ChildNodeListLazy extends ListBase<Node> implements NodeListWrapper {
   final Node _this;
 
   _ChildNodeListLazy(this._this);
 
 
 $if DART2JS
   Node get first {
     Node result = JS('Node|Null', '#.firstChild', _this);
     if (result == null) throw new StateError("No elements");
     return result;
@@ skipping 150 matching lines @@
   // TODO(jacobr): benchmark whether this is more efficient or whether caching
   // a local copy of childNodes is more efficient.
   int get length => _this.childNodes.length;
 
   void set length(int value) {
     throw new UnsupportedError(
         "Cannot set length on immutable List.");
   }
 
   Node operator[](int index) => _this.childNodes[index];
+
+  List<Node> get rawList => _this.childNodes;
 }
 
 
 $(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 
   // Custom element created callback.
   Node._created() : super._created();
 
   List<Node> get nodes {
     return new _ChildNodeListLazy(this);
@@ skipping 60 matching lines @@
       }
     }
   }
 
   /**
    * Print out a String representation of this Node.
    */
   String toString() => nodeValue == null ? super.toString() : nodeValue;
 $!MEMBERS
 }