Merge "Don't crash system_server due to bad event time stamps." into udc-dev am: 3588c993 am: 62ddc3e7 am: c708c681 am: e55dfb9f

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



Change-Id: Ieff59582422b982c0b7acba417996a0f84e4d177
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>