factory constructor HashChangeEvent

Source

factory HashChangeEvent(String type,
    {bool canBubble: true,
    bool cancelable: true,
    String oldUrl,
    String newUrl}) {
  var options = {
    'canBubble': canBubble,
    'cancelable': cancelable,
    'oldURL': oldUrl,
    'newURL': newUrl,
  };
  return _blink.BlinkHashChangeEvent.instance
      .constructorCallback_2_(type, convertDartToNative_Dictionary(options));
}