Merge "Post a silent notification if screenshot is dismissed" into rvc-dev am:...

Merge "Post a silent notification if screenshot is dismissed" into rvc-dev am: 18bb8d11 am: 46cf5499 am: af09625e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11809243

Change-Id: I801a9724f4fd6acb1eb421f3da4f9c344fb73c7c