Merge "Validate events before printing them" into udc-dev am: 38a3e0b7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22790442



Change-Id: I8b4ef9f04bf66d3b933fe29fe6d13d8ff005d342
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>