}, 
} 
  _convertByteUnits: function(aBytes)  {    let unitIndex = 0;    // convert to next unit if it needs 4 digits (after rounding), but only if    // we know the name of the next unit    while ((aBytes >= 999.5) && (unitIndex < this._units.length - 1)) {      aBytes /= 1024;      unitIndex++;    }    // Get rid of insignificant bits by truncating to 1 or 0 decimal points    // 0 -> 0; 1.2 -> 1.2; 12.3 -> 12.3; 123.4 -> 123; 234.5 -> 235    aBytes = aBytes.toFixed((aBytes > 0) && (aBytes < 100) ? 1 : 0);    return [aBytes, this._units[unitIndex]];  },
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/463f1e87ae74719e45711ec5bfddfe80bc4b82be/DownloadProgressListener.js/clean/toolkit/mozapps/downloads/content/DownloadProgressListener.js