Merge "Ensure page scrolls are initialized even for 0 children." into tm-dev...

Merge "Ensure page scrolls are initialized even for 0 children." into tm-dev am: 1e211e0c am: 0a3ef79f am: af5ac498 am: c980da66

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18625747



Change-Id: Ic61584df6849bd3c216b3725e698d09f8324774d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>