abort() {
    this.cancelLoad();
    if (this.getStatus() != ee.layers.AbstractTile.Status.ABORTED &&
        this.getStatus() != ee.layers.AbstractTile.Status.REMOVED) {
      this.setStatus(
          this.isDone() ? ee.layers.AbstractTile.Status.REMOVED :
                          ee.layers.AbstractTile.Status.ABORTED);
    }
  }
Aborts the tile. Sets status to REMOVED if already done or ABORTED if not.
@package