Merge "Create test for default grid" into tm-qpr-dev am: 267d7179

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20347132



Change-Id: I6cb50a223aa63323812133b50499fb84b6c19698
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>