setSkipSelect(skip, opt_preSkip) {
    this.skipSelect_ = skip;
    if (skip) {
      this.preSkip_ = opt_preSkip || null;
    }
  }
Sets whether to skip selecting an account.
@param {boolean} skip Whether to skip selecting an account.
@param {function()=} opt_preSkip Callback to invoke before onSkip callback.