Merge "[Partial Screensharing] Add initial recents selector UI" into tm-qpr-dev am: 66e91066

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19867406



Change-Id: I4f6b2799fa1009f3c3b888ac926c8c7455cfbc28
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>