Merge "Add a unit test for TouchpadInputMapper" into udc-dev am: 1930f60ddf am: e166fe7974 am: f1e0ae7dc4 am: 56116d72d7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23267663

Change-Id: Ic5c23c9751c92d7ad0778ebb1c4b03e745136312
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>