commit 791ee32a6290440f3ade2cb9027e384ca864d7bb
author Hugo Benichi <hugobenichi@google.com> Wed Jul 06 22:53:17 2016 +0900
committer Lorenzo Colitti <lorenzo@google.com> Wed Jan 18 19:08:18 2017 +0900
tree c274653b6dc1901050bb6b6772bdf99ac3bb3c1f
parent 81deef84fb8bd0365ca72b0fef45369c16efe011

DO NOT MERGE: ConnectivityManager: a simpler CallbackHandler

This patch simplifies CallbackHandler in the following way:
  - CallbackHandler directly uses the static references to
    sNetworkCallback and sCallbackRefCount. This allows to remove
    instance fields in CallbackHandler.
  - CallbackHandler does not have a reference to ConnectivityManager
    anymore
  - CallbackHandler.getObject() is now generic in a type-safe way.

Test: ConnectivityServiceTest passes
Bug: 28537383
Bug: 32130437

(cherry picked from commit d42650faaa33ec6274278c65a6042228555ddd4f)

(cherry picked from commit 4983e55853db9f9d1cc5720970c439b976480c52)

Change-Id: I4d0b2441b6af76bc56b19218210a2a381532a3c4