Merge "MediaProjection: stop media projection activity result from being...

Merge "MediaProjection: stop media projection activity result from being stored after being sent" into udc-dev am: f682c0d4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21910526



Change-Id: Ib3f6b95d749c0966bdf12e5dfdd22a3c71182196
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>