Add enables consistent with Chrome's WebKit

client/dom/generated/src/interface/HTMLIFrameElement.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.
 
 interface HTMLIFrameElement extends HTMLElement {
 
   String get align();
 
@@ skipping 35 matching lines @@
 
   void set scrolling(String value);
 
   String get src();
 
   void set src(String value);
 
   String get width();
 
   void set width(String value);
+
+  SVGDocument getSVGDocument();
 }