Merge "[Launcher] App grid support for reset (1/4)." into tm-qpr-dev am: 7729aa4cc6 am: 48c55e0c6d am: 3fd9523587 am: efb3707e6c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21467322

Change-Id: I57c9da07f7358d05086712290d6cc8741ef8f264
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>