[automerger skipped] Merge "DO NOT MERGE Disallow Wallpaper service to launch activity from background." into sc-v2-dev am: 2bb5270437 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25329531

Change-Id: Ifec4c5ce03cbc1fe05a4d49799b96859223bc29c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>