Merge "input jni: don't depend on unique_fd cast to int" into main am: 47cf4f16

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2835674



Change-Id: If1f5933bf0e30b534e890841fd5f83a6059e0813
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>