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

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

Change-Id: I0602a3da51910cc9a875ba4d47b02b18d07705aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>