Merge "Support shell transition for restarting process of activity" into udc-dev am: 882f5220

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22101152



Change-Id: Iad8b3056e753be770a07bc214c3e8eb4295e4f7b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>