Merge "Have an interface for WidgetsSearchBar so Nexus Launcher can override the search bar." into sc-dev am: f8cf4c59b7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13827977

Change-Id: I5e32a8852d7f8ed4d70af2ce2a150adb0212d127