Merge "Apply depth even when surface is null" into sc-dev am: 818ed4b794 am: f87cd286d5 am: a928b462fd

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15055654

Change-Id: I3fe687c74d9df11ec3e08a8d2c4d637f62dda1f2