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: I4b48e067a7f4571f20a13e8a6bef94e0e2cdecaf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>