Merge "Use ArrayMap instead of SparseArray to manage the ProviderKey" into sc-dev

        @Override

        public int hashCode() {

            return hashCode(authority, userId);

        }

        public static int hashCode(final String auth, final int userIdent) {

            return ((auth != null) ? auth.hashCode() : 0) ^ userIdent;

            return ((authority != null) ? authority.hashCode() : 0) ^ userId;

        }

    }

    // Note we never removes items from this map but that's okay because there are only so many

    // users and so many authorities.

    @GuardedBy("mGetProviderKeys")

    final SparseArray<ProviderKey> mGetProviderKeys = new SparseArray<>();

    final ArrayMap<ProviderKey, ProviderKey> mGetProviderKeys = new ArrayMap<>();

    final ArrayMap<Activity, ArrayList<OnActivityPausedListener>> mOnPauseListeners

        = new ArrayMap<Activity, ArrayList<OnActivityPausedListener>>();

    }

    private ProviderKey getGetProviderKey(String auth, int userId) {

        final int key = ProviderKey.hashCode(auth, userId);

        final ProviderKey key = new ProviderKey(auth, userId);

        synchronized (mGetProviderKeys) {

            ProviderKey lock = mGetProviderKeys.get(key);

            if (lock == null) {

                lock = new ProviderKey(auth, userId);

                lock = key;

                mGetProviderKeys.put(key, lock);

            }

            return lock;