@Override
    protected ExtendedCell parseCell() throws IOException {
      return ProtobufUtil.toCell(cellBuilder, CellProtos.Cell.parseDelimitedFrom(this.in), false);
    }
Codec that just writes out Cell as a protobuf Cell Message. Does not write the mvcc stamp. Use a
different codec if you want that in the stream.
hbase-server/src/main/java/org/apache/hadoop/hbase/codec/MessageCodec.java