anchor.diff:    final Uri httpAddress;
   
     static const int kMaxInFlight = 6;
  +  static const int kMaxRetries = 3;
   
     int _inFlight = 0;
     Map<String, DevFSContent> _outstanding;
  
positive.code:       HttpClientResponse response = await request.close();
        await response.drain<Null>();
      } catch (e) {
        printError('Error writing "$devicePath" to DevFS: $e');
      }
      if (progressReporter != null) {
        _done++;
  
negative.code:     }
    }
  
    Future<Null> _scheduleWrite(
      String devicePath,
      DevFSContent content,
      DevFSProgressReporter progressReporter, [
      int retry = 0,
    ]) async {
      try {
        HttpClientRequest request = await _client.putUrl(httpAddress);
        request.headers.removeAll(HttpHeaders.ACCEPT_ENCODING);
  