Jeff Sharkey 25ce9ed57f Avoid NDC deadlock when re-arming network alert.
When NDC delivers limitReached() event, NMS re-arms the alert, which
makes another call back to NDC.  If NDC already started processing
another call, this causes deadlock.

Fix this by re-arming on a handler thread.

Bug: 5879848
Change-Id: I46fa78fe1f1122c5f31dd6020483e5ae89a9f39d
2012-02-02 13:09:52 -08:00
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