Merge "Include what you use in event_checkers.h" into main am: 17b71ae0

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2863323



Change-Id: I10a4d8b5ec52f3549ec09d3d7294b3925cbde9b6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>