Merge "Use unique_fd instead of int on socket" am: 7711eb1b am: 204dcfc2...

Merge "Use unique_fd instead of int on socket" am: 7711eb1b am: 204dcfc2 am: 3299cbf3 am: 02d441b2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2202415



Change-Id: I707b086ab5689162811b2402962cc8c249037b6b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>