Merge "Use unique_fd for usableProgram" into main am: 908ca9e9d8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3372419

Change-Id: Ic4a542720c9ce691f2121f8885d03b4c123b5398
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>