Merge "Add "incrementEventCountBy" function to OnboardingPrefs." into tm-dev am: 218703d5a9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18500283

Change-Id: I3bb2ff1aa7ad2e8814837146eb6aa356c209f3e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>