Merge "lshal: PipeRelay: use modern classes." am: 31a1157509 am: cd4f39447e am: 9a091252c4 am: b1e101beb7

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

Change-Id: I6c5ddd3a2a9580a2046cf24f940d7569d6be98df