[automerger skipped] Add MdnsDiscoveryManager constructor without looper am: bb4c717fbb -s ours

am skip reason: Merged-In I0ab04d67bae127628c6d67c4b8c109201612a54b with SHA-1 243d1a5de4 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/23482802

Change-Id: I82cc50fb60c2d53d2b0f7da398ae04ab6208394a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>