Merge "Set taskbar heights to 0 when taskbar is not present." into udc-qpr-dev am: d295e351

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/24759056



Change-Id: I264b4f4cc0ce92f3140759fb6d3305f9018caa6b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>