Merge "Add safety comments." into main am: 367ade7e am: 619328d7 am:...

Merge "Add safety comments." into main am: 367ade7e am: 619328d7 am: 437febdc am: 552161e4 am: 5a0455c2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2671476



Change-Id: I28b966ba7da2af7d6ce8cc7557e7114cad86355e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>