Add a method to start the captive portal login app.

Bug: 36203355
Bug: 36656914
Test: ConnectivityServiceTest (including new test) passes
Change-Id: I82a9a9a8da47870ba3f1bbef5941b37e970c844f
4 files changed
tree: 0890bdb9c6bd821cb185e84a4e2e66ec03768a20
  1. core/
  2. services/
  3. tests/