commit b577d65825e623a9868664486482ed137b98b504
author Hugo Benichi <hugobenichi@google.com> Tue Jun 27 15:13:20 2017 +0900
committer Hugo Benichi <hugobenichi@google.com> Mon Aug 28 15:29:23 2017 +0900
tree 9c7486f35c24d150a853822af13de49c3e004a9b
parent b5b1308f2fdcf2f3f0b6c862e6afa73017f642f9

Nat464Xlat: clat management cleanup

This patch does some minor refactoring of clat starting/stopping code:
 - remove unused LinkProperties arguments in updateClat
 - remove unused Context argument in Nat464Xlat ctor
 - introduce ensureClatIsStarted and ensureClatIsStopped methods and
   simplify updateClat
 - add clatd to NetworkAgentInfo toString() method
 - clarify some comments

This changes prepare for moving BaseNetworkObserver callbacks to
ConnectivityService.

Bug: 62997041
Bug: 64571917
Test: runtest frameworks-net
      manually connected to IPv6 only network and went to test-ipv6.com
Change-Id: Idb204784614cfe700f73255a7a7b78c5e9ee6eca