Merge "Make the header invisible when customizing" into sc-dev am: f99de685 am: 3ead7932 am: 68f08764

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14847778

Change-Id: Ie4d387ecc912a5ca4606ee84a7543106dccb36e4