New version of dart:html

client/html/generated/src/wrapping/_HistoryWrappingImplementation.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 HistoryWrappingImplementation extends DOMWrapperBase implements History {
   HistoryWrappingImplementation._wrap(ptr) : super._wrap(ptr) {}
 
   int get length() { return _ptr.length; }
 
   void back() {
     _ptr.back();
     return;
   }
 
   void forward() {
     _ptr.forward();
     return;
   }
 
   void go(int distance) {
     _ptr.go(distance);
     return;
   }
 
-  void pushState(Object data, String title, [String url = null]) {
+  void pushState(Object data, String title, [String url]) {
     if (url === null) {
       _ptr.pushState(LevelDom.unwrapMaybePrimitive(data), title);
       return;
     } else {
       _ptr.pushState(LevelDom.unwrapMaybePrimitive(data), title, url);
       return;
     }
   }
 
-  void replaceState(Object data, String title, [String url = null]) {
+  void replaceState(Object data, String title, [String url]) {
     if (url === null) {
       _ptr.replaceState(LevelDom.unwrapMaybePrimitive(data), title);
       return;
     } else {
       _ptr.replaceState(LevelDom.unwrapMaybePrimitive(data), title, url);
       return;
     }
   }
 }