processManifest_(manifest, finalManifestUri) {
    if (this.updateTimer_ != null) {
      this.updateTimer_.stop();
      this.updateTimer_ = null;
    }
    const uri = manifest['RELOAD-URI'] || finalManifestUri;
    this.updateTimer_ = new shaka.util.Timer(() => {
      this.requestInfo(uri);
    });
    const newTTL = manifest['TTL'];
    if (newTTL) {
      this.lastTTL_ = newTTL;
    }
    this.updateTimer_.tickAfter(this.lastTTL_);
    this.pathwayPriority_ = manifest['PATHWAY-PRIORITY'] || [];
    this.pathwayClones_ = manifest['PATHWAY-CLONES'] || [];
  }
@param {shaka.util.ContentSteeringManager.SteeringManifest} manifest
@param {string} finalManifestUri
@private