[automerger skipped] Make Activites touch opaque - DO NOT MERGE am: 22261fa6 am: eaf6143e -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18029563



Change-Id: Ic35e60bddbd554463f3c8c405c672495303d308d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>