Merge "Let default transition handler animate customized animation" into...

Merge "Let default transition handler animate customized animation" into udc-dev am: bfd84899 am: 75d53169 am: 0439a98b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23563396



Change-Id: Iaf2edec571b04962f43acb48bf71e867bc7ea277
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>