Merge "Add timeouts to animations in UserSwitchingDialog." into udc-dev am: d3446e4e am: d847e507 am: 8eeef343 am: 4b64374e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22967258



Change-Id: Id2e85975e2e9811747d781dd64bba918a5d8f280
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>