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

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

Change-Id: Ia2acdc316d5955cdc39451e5a5ae68da0c0477e9