Support DOMString[] and regenerate from IDL

client/dom/generated/src/wrapping/_MutationCallbackWrappingImplementation.dart

+// Copyright (c) 2011, 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.
+
+// WARNING: Do not edit - generated code.
+
+class _MutationCallbackWrappingImplementation extends DOMWrapperBase implements MutationCallback {
+  _MutationCallbackWrappingImplementation() : super() {}
+
+  static create__MutationCallbackWrappingImplementation() native {
+    return new _MutationCallbackWrappingImplementation();
+  }
+
+  String get typeName() { return "MutationCallback"; }
+}