Merge "[Partial Screensharing] Task Switcher flag" into udc-qpr-dev am: e3f273f5 am: 004dd80c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23781308



Change-Id: I76360700eea203d15920d26c195d94db1ebd8fa7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>