Add XSLTProcessor constructor

client/dom/src/wrapping_FactoryProviders.dart

 // 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.
 
 class _AudioContextFactoryProvider {
 
   factory AudioContext() { return create(); }
 
   static AudioContext create() native;
 }
@@ skipping 83 matching lines @@
 
   static WebKitPoint create(url) native;
 }
 
 class _XMLHttpRequestFactoryProvider {
 
   factory XMLHttpRequest() { return create(); }
 
   static XMLHttpRequest create() native;
 }
+
+class _XSLTProcessorFactoryProvider {
+
+  factory XSLTProcessor() { return create(); }
+
+  static XSLTProcessor create() native;
+}