Merge "Extract PreviewPositionHelper to shared library" into tm-qpr-dev am: b55f5dae

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20024606



Change-Id: I26d1d5acfa481f205850fb7c2a5b6f188e3fd891
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>