Merge "init: Document which class Service members are not modified" am:...

Merge "init: Document which class Service members are not modified" am: 3afd6327 am: 8b53ed25 am: c6085471

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2302561



Change-Id: I8a7a3b98e42971429119ff280d30ce0ec38fbf70
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>