Merge "Merge "Clean up the lastUsedTime nullability" into udc-dev am:...

Merge "Merge "Clean up the lastUsedTime nullability" into udc-dev am: 9e1f5f9a am: f0305b58 am: e66c806b" into udc-qpr-dev-plus-aosp am: e54063c1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23078401



Change-Id: I840796f65be81ac6c988d139d93c80456713d472
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>