Merge "Allow grids to specify if we should start align taskbar in 3 button...

Merge "Allow grids to specify if we should start align taskbar in 3 button nav." into tm-qpr-dev am: 65ac592f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22361600



Change-Id: I71c7f33286ccfa770f87b812c8ec27fa4ecb25ed
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>