Merge "Make startTransition one-way" into tm-qpr-dev am: 96eae235 am: e471197f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20034031



Change-Id: I37a9152993f26c5efd718a95be32826a065d51f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>