Merge "Provides VisualQueryDetection start recognition signal for SysUI" into udc-qpr-dev am: cb8ddff059 am: 7fdb60c8c4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24315052

Change-Id: Ieddb5ed11de41d1408954cc6995ac3ddb1263acb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>