docs: function(eventName, cpuNumber, pid, ts, eventBase) {
        // Check for new-style clock sync records.
        var event = /name=(\w+?)\s(.+)/.exec(eventBase.details);
        if (event) {
          var name = event[1];
          var pieces = event[2].split(' ');
          var args = {
            perfTS: ts
          };
          for (var i = 0; i < pieces.length; i++) {
            var parts = pieces[i].split('=');
            if (parts.length != 2)
              throw new Error('omgbbq');
            args[parts[0]] = parts[1];
          }
          this.addClockSyncRecord(new ClockSyncRecord(name, ts, args));
          return true;
        }
  
        // Old-style clock sync records from chromium
        event = /parent_ts=(\d+\.?\d*)/.exec(eventBase.details);
        if (!event)
          return false;
  
        this.addClockSyncRecord(new ClockSyncRecord('monotonic', ts, {
          perfTS: ts,
          parentTS: event[1] * 1000
        }));
        return true;
      }