@Override
  public void updatePeerChainState(
      final long knownBlockNumber, final PeerConnection peerConnection) {
    final EthPeer ethPeer = ethPeers.peer(peerConnection);
    if (ethPeer == null) {
      LOG.debug("Received message from a peer with no corresponding EthPeer.");
      return;
    }
    ethPeer.chainState().updateHeightEstimate(knownBlockNumber);
  }
Instantiates a new Eth synchronizer updater.

@param ethPeers the eth peers
consensus/common/src/main/java/org/hyperledger/besu/consensus/common/bft/EthSynchronizerUpdater.java