Merge "Full-screen user switcher is now scrollable." into tm-qpr-dev am: 5e093f4a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20306244



Change-Id: I82fd1d23779db72bba2a6835d0e4d44844e63109
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>