add cts for unprivileged keepalive slots

Currently, unprivileged Nat-T keepalives are limited to 1 slot
per uid. Add CTS to verify that the keepalive slots are limited
as customized for unprivileged requests.

Bug: 129371366
Test: atest android.net.cts
      .ConnectivityManagerTest#testSocketKeepaliveUnprivileged
      --generate-new-metrics 10

Change-Id: I60b9e9ae9cf2b63490493ced9738cd2f402c3f9b
1 file changed
tree: d5ab0e66eea86e43c81a1436c58f3954fb3e237a
  1. tests/