Base APN State on the state of the ApnContext.

Stop using enablement or activeness as a proxy for state and
just ask for the state.  Enablement has changed (since L)
to indicate if we should look for a connection and is not
representative of if we have a connection.

bug:26785653
Change-Id: I8c1edda733509d2539989e727809c13002abf37f
4 files changed
tree: 07b763a7be9c56d96dcb3ce8b03c7c2977f52a96
  1. src/
  2. tests/
  3. tools/
  4. Android.mk
  5. CleanSpec.mk
  6. README.txt