1. DomName('Window.open')
  2. DocsEditable()
WindowBase open(String url, String name, [String options])

Source 

@DomName('Window.open')
@DocsEditable()
WindowBase open(String url, String name, [String options]) => wrap_jso(_blink.BlinkWindow.instance.open_Callback_3_(unwrap_jso(this), url, name, options));