Merge "NetworkNotificationManager gets NotificationManager locally" am: a13966feea am: 0e2959a56b am: adfd73bd18 am: c59b775963

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1459882

Change-Id: Ib82fdb4eb61b7d52e0011271da81c30606dbe3c3