Merge "[MediaProjection] Require apps register a callback before recording"...

Merge "[MediaProjection] Require apps register a callback before recording" into udc-dev am: f9e09190 am: e8cc0a8f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21611649



Change-Id: I0172803b1e1e20bdbe2e8a68cd6aacbf7451b5ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>