Enable fullscreen API and file system API

client/dom/generated/src/interface/Element.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 Element extends Node, NodeSelector, ElementTraversal {
 
+  static final int ALLOW_KEYBOARD_INPUT = 1;
+
   int get childElementCount();
 
   int get clientHeight();
 
   int get clientLeft();
 
   int get clientTop();
 
   int get clientWidth();
 
@@ skipping 77 matching lines @@
 
   void setAttribute(String name, String value);
 
   void setAttributeNS(String namespaceURI, String qualifiedName, String value);
 
   Attr setAttributeNode(Attr newAttr);
 
   Attr setAttributeNodeNS(Attr newAttr);
 
   bool webkitMatchesSelector(String selectors);
+
+  void webkitRequestFullScreen(int flags);
 }