Merge "[Partial screen sharing] App selector initial version" into tm-qpr-dev am: 0b670f20

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18188206



Change-Id: I86840a3e81feffe9d6f978467f04d3d1bd6a6eef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>