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

Merge "Move all transition queueing into transitioncontroller" into udc-dev am: 89a311c2 am: e9711146

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



Change-Id: I2e966e3ae44c2daa5b3621ae7f03fe840776039c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>