Add XSLTProcessor constructor

client/dom/src/dummy_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.
 
 
 _dummy() {
   throw const NotImplementedException();
 }
 
 class _AudioContextFactoryProvider {
@@ skipping 62 matching lines @@
 
 class _WebSocketFactoryProvider {
 
   factory WebSocket(String url) => _dummy();
 }
 
 class _XMLHttpRequestFactoryProvider {
 
   factory XMLHttpRequest() => _dummy();
 }
+
+class _XSLTProcessorFactoryProvider {
+
+  factory XSLTProcessor() => _dummy();
+}