Merge "[Search] Update AllApps header protection" into sc-qpr1-dev am: 832043d1c9 am: bfaf09ebef am: 85dccfb8cc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15748885

Change-Id: I9d15fdbedb3b04f58c7429242f52a73f50f4d357