Fallback to CurrentWallpaperInfoFactory if recents is not available am: b6abe55a8c am: 7456b80b0a am: 7a24334cae

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23451868

Change-Id: I6cee29f88adff1aa1a73ca3fb05436d08b06caed
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>