Merge "Add a stickiness factor to Back arrow on entry" into udc-dev am: 682209e2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22789960



Change-Id: I8329e233f1f62e031c44a96b4dab12ac34338122
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>