code: function CaptureTimeoutLauncher (timer, captureTimeout) {
    if (!captureTimeout) {
      return
    }
  
    let pendingTimeoutId = null
  
    this.on('start', () => {
      pendingTimeoutId = timer.setTimeout(() => {
        pendingTimeoutId = null
        if (this.state !== this.STATE_BEING_CAPTURED) {
          return
        }
  
        log.warn(`${this.name} have not captured in ${captureTimeout} ms, killing.`)
        this.error = 'timeout'
        this.kill()
      }, captureTimeout)
    })
  
    this.on('done', () => {
      if (pendingTimeoutId) {
        timer.clearTimeout(pendingTimeoutId)
        pendingTimeoutId = null
      }
    })
  }
docs: Kill browser if it does not capture in given `captureTimeout`.