docs: function softwareUpdate_waitForDialogOpen(browserController) {
      this._controller = utils.handleWindow("type", "Update:Wizard",
                                                     null, true);
      this._wizard = this.getElement({type: "wizard"});
  
      this._controller.waitFor(function() {
        return this.currentPage != WIZARD_PAGES.dummy;
      }, "Dummy wizard page has been made invisible.", undefined, undefined, this);
  
      this._controller.window.focus();
    }