Merge "Add logging for unseen notif filtering" into udc-dev am: 209dc31506 am: ba8ec2dddd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22557506

Change-Id: Idc43035d2c4443c4149c0378d4ee22ac45b1fac8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>