[automerger skipped] Merge "Configure existing ThemePicker Robolectric tests to run with atest." into tm-qpr-dev am: f3bfb5f268 -s ours am: e325678b0e -s ours

am skip reason: Merged-In I25c4efdb73dc5eb88611efac669de13fa2be0c3d with SHA-1 9a9c7c1809 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/20639269

Change-Id: I292d4fd6a12d5c57724fc925ff126520c1f11707
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>