Merge "TaskOverlayFactoryGo: Keep persistent instance of AssistContentRequester" into sc-dev am: b7cecf8a90 am: 47229933c7 am: 9fb00f09bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14803962

Change-Id: Ida9ec2f681a63ec1967970d06c45963809d3e130