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

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



Change-Id: I4a3fbe827e227cf70f5b8f7d537f695ab45b53f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>