Merge "Standardise safety comments for unsafe blocks, and add some more." into main am: f56c8b1e06 am: a98f7e2a93 am: b0668badd8

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2652159

Change-Id: Ie7d7f557d0fcab3b1b3d33273676207489fbcc80
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>