Merge "InputMapper refactor: TouchpadInputMapper" into udc-dev am: e015d02604

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23101343

Change-Id: I86df18538989159fce6e215891827ff5af64f2fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>