Merge "Decrease Back Arrow committed animation duration" into udc-dev am: 7111e1f2 am: f4e294cb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22241020



Change-Id: I56055b78dc2b31977347097994ffe46d36519d87
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>