Merge "Adding two UiEvent IDs to log when slider tracks and stops tracking touch." into udc-qpr-dev am: df1ed5f88a am: 1f1aee63f8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24498602

Change-Id: I94a4f9a9fe4310f4d8776cc6d0907d540442c86e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>