Merge "inputflinger_tests: use sp w/ RefBase" am: d21420ad06

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2100674

Change-Id: I0a405cb41727283a44040275e4bae0e7dcd4ed87
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>