Merge "(5/N)[MediaProjection] Send no frames until user reviews consent" into udc-dev am: 9736133ffc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22765499

Change-Id: Id21d8db4e31aa227ff1c6fbf5ef04ea071cc676d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>