Merge "[Search] Update AllApps header protection" into sc-qpr1-dev am: 832043d1c9 am: c09a130f89 am: 86356d71bd

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

Change-Id: I54e8d1c25288786df5cd0237e6b67c92d6beada1