Add new api for search pre-index am: 22d1cdb3 am: 9f7094e4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/20307416



Change-Id: I17d9477ad63c38c1cece30b9c029bc43d68cb363
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>