code: function(e) {
        var redirectedEvent = document.createEvent('MouseEvents');
        redirectedEvent.initMouseEvent(e.type, e.bubbles, e.cancelable, window,
            e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey,
            e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);
        this.dialog_.dispatchEvent(redirectedEvent);
        e.stopPropagation();
      }
docs: Handles clicks on the fake .backdrop element, redirecting them as if
  they were on the dialog itself.
  
  @param {!Event} e to redirect