Merge "Unifying scroll calculation logic for both widgets and apps recycler...

Merge "Unifying scroll calculation logic for both widgets and apps recycler view Also using itemType instead of item object for widget size cache" into tm-qpr-dev am: 5069964e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18763224



Change-Id: Ief18fa0a43fd0c01685109ef26f37d32af1c200b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>