Merge "Use a unique notification per screen recording" into udc-dev am: 552d9571 am: 6e1330ed

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22908881



Change-Id: I9e9e97b8612883093bbfae26129a4b089fa1e01c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>