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: I93ade13593fe6c65e4e9f9df66203a516afc70ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>