[automerger skipped] SurfaceControl: Add setDropInputMode api am: 77daf700ce am: d5a65ea539 am: cb73663112 -s ours am: 514778a32e -s ours

am skip reason: Merged-In I443741d5ab51a45d37fb865f11c433c436d96c1e with SHA-1 50c735592e is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/16740114

Change-Id: I7868ec437f7b2e3ae58df5b0f0266b48a28a6cba