Merge "Add safety comments." into main am: cddabac71f am: c6ad6ecd46

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2682930

Change-Id: Ib0a1ac868aa460de64b5e131766330db1dd14249
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>