function processRecord(record)
        {
            if (record.endTime() < this._windowStartTime ||
                record.startTime() > this._windowEndTime)
                return;
            if (WebInspector.TimelineUIUtils.testContentMatching(record.traceEvent(), searchRegExp))
                matches.push(record);
        }
@param {!WebInspector.TimelineModel.Record} record
@this {WebInspector.TimelinePanel}