Merge "[Search] Update AllApps header protection" into sc-v2-dev am: e34c2f8272 am: 7f8e1c7213

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15619042

Change-Id: I7fa29902406eca8a3e962d2a1c359e8e53f08ebe