Merge "lshal: PipeRelay: use modern classes." am: 31a1157509 am: cd4f39447e am: 9a091252c4

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1740713

Change-Id: Ia5af72777223207d1b9727210df25dc23a8b77a2