回调：OnPathValidationCallback

¥Callback: OnPathValidationCallback

• this quic.QuicSession

• result <string> 'success'、'failure' 或 'aborted' 之一。

  ¥result <string> One of either 'success', 'failure', or 'aborted'.

• newLocalAddress <net.SocketAddress>

• newRemoteAddress <net.SocketAddress>

• oldLocalAddress <net.SocketAddress>

• oldRemoteAddress <net.SocketAddress>

• preferredAddress <boolean>