New version of dart:html

client/html/generated/src/wrapping/_FileReaderSyncWrappingImplementation.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 FileReaderSyncWrappingImplementation extends DOMWrapperBase implements FileReaderSync {
   FileReaderSyncWrappingImplementation._wrap(ptr) : super._wrap(ptr) {}
 
   ArrayBuffer readAsArrayBuffer(Blob blob) {
     return LevelDom.wrapArrayBuffer(_ptr.readAsArrayBuffer(LevelDom.unwrap(blob)));
   }
 
   String readAsBinaryString(Blob blob) {
     return _ptr.readAsBinaryString(LevelDom.unwrap(blob));
   }
 
   String readAsDataURL(Blob blob) {
     return _ptr.readAsDataURL(LevelDom.unwrap(blob));
   }
 
-  String readAsText(Blob blob, [String encoding = null]) {
+  String readAsText(Blob blob, [String encoding]) {
     if (encoding === null) {
       return _ptr.readAsText(LevelDom.unwrap(blob));
     } else {
       return _ptr.readAsText(LevelDom.unwrap(blob), encoding);
     }
   }
 }