ameProcessModelSpec_();
    // [Scroll R]
    //       [Scroll R]
    modelSpec.expectations.push(
        {stage: 'Response', initiatorType: INITIATOR_TYPE.SCROLL,
          range: [210, 260]},
        {stage: 'Response', initiatorType: INITIATOR_TYPE.SCROLL,
          range: [250, 300]}
    );

    const pathForAllThreads = [
      [CHROME_PROCESS_NAMES.BROWSER], [], ['Response', 'Scroll']];

    const pathForThread1 = [
      [CHROME_PROCESS_NAMES.BROWSER],
      ['CrBrowserMain'], ['Response', 'Scroll']