Merge "Structure for screenshot detection notification." into tm-qpr-dev am:...

Merge "Structure for screenshot detection notification." into tm-qpr-dev am: 30db92a9 am: b0112cf7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21124944



Change-Id: Ib5688c91acd59ba81482a4485d7a9a6d36086c0c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>