commit 4d11ec988efa695b9e07ecc1eaaca76e469be18a
author Chiachang Wang <chiachangwang@google.com> Tue Oct 23 21:10:57 2018 +0800
committer Chiachang Wang <chiachangwang@google.com> Tue Oct 23 21:10:57 2018 +0800
tree 5ae0892734309195577af8671c0ddfa6c6ddf851
parent 1ad4aed0b96877092080ea2225cbd70f27ae8eb8

Move captive portal detection to another thread

isCaptivePortal() could take up to a minute. Resolving the
server's IP addresses could hit the DNS timeout, and attempting
connections to each of the server's several IP addresses
(currently one IPv4 and IPv6) could each take SOCKET_TIMEOUT_MS.
During this time this StateMachine will be unresponsive. Thus,
move detection to another thread.

Test: - runtest frameworks-net
      - run cts -m CtsNetTestCases
        -t android.net.cts.ConnectivityManagerTest
      - manual test(VALIDATION_SUCCESS, VALIDATION_FAILED,
        NETWORK_CAPTIVE_PORTAL_FOUND, bad network reported)
Bug: 113916551

Change-Id: I5ac39dc826acd26c64adaaa0b27a76cd7c7fd843