Merge "Improve first opaque activity candidate detection" into udc-dev am: 3d8f1668

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22885818



Change-Id: Ie15c0993c6f874e402072634041ac06f6867b323
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>