Merge "Move all transition queueing into transitioncontroller" into udc-dev...

Merge "Move all transition queueing into transitioncontroller" into udc-dev am: 89a311c2 am: 198eb7db

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22733355



Change-Id: I5a1824cf1041c13e89d7f6cbac341225f1ca51c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>