Merge "[MediaProjection] Finish permission activity if dialog dismissed or...

Merge "[MediaProjection] Finish permission activity if dialog dismissed or cancelled" into tm-qpr-dev am: 4d6d94f8 am: 4fd9bddb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22478222



Change-Id: Idea168012b83a5e2789700a3f0c2a739d60a661a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>