@Override
  public void blockWritten(long offset, int onDiskSize, int uncompressedSize) {
    ReadyChunk readyChunk = readyChunks.remove();
    bloomBlockIndexWriter.addEntry(readyChunk.firstKey, offset, onDiskSize);
  }
Enqueue the current chunk if it is ready to be written out.
@param closing true if we are closing the file, so we do not expect new keys to show up
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CompoundBloomFilterWriter.java