static showAsPassed(audit) {
    switch (audit.scoreDisplayMode) {
      case 'manual':
      case 'notApplicable':
        return true;
      case 'error':
      case 'informative':
        return false;
      case 'numeric':
      case 'binary':
      default:
        return Number(audit.score) >= RATINGS.PASS.minScore;
    }
  }
Used to determine if the "passed" for the purposes of showing up in the "failed" or "passed"
sections of the report.

@param {{score: (number|null), scoreDisplayMode: string}} audit
@return {boolean}