 1) * 1000 <= endTime; i += 1) {
      const start = i * 1000;
      const end = (i + 1) * 1000;
      results.push({
        start,
        end,
      });
    }
    return results;
  }

  function getNavigationInfos(model) {
    const navigationInfos = [];
    const chromeHelper = model.getOrCreateHelper(
        tr.model.helpers.ChromeModelHelper);
    for (const expectation of model.userModel.expectations) {
      if (!(expectation instanceof tr.model.um.LoadExpectation)) continue;
      if (tr.e.chrome.