[automerger skipped] Merge "[RESTRICT AUTOMERGE] Add hide-non-system-overlay...

[automerger skipped] Merge "[RESTRICT AUTOMERGE] Add hide-non-system-overlay flag for HarmfulAppWarningActivity" into sc-dev am: 5cf8597a am: a03eeb96 am: 577e3773 -s ours am: 83966a39 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16743243

Change-Id: I8843d0a0ea4ab99b27563d84e67d435b590bf402