Merge "Introducing API to produce slider events." into udc-qpr-dev am: 90db903ff2 am: b74be890a1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24448713

Change-Id: I85395206c19f3bce83647da65d71fa959b81c617
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>