Merge "Don't crash system_server due to bad event time stamps." into udc-dev am: 3588c993

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22761826



Change-Id: I7d304fbec3afecc79b43e2d6de1f193170f07be4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>