NAN: update test harness to include message ID information

Message ID is a caller-side arbitrary integer identifying a message.
Same message ID is provided back to caller on any callback relating
to message - e.g. message send success or fail.

Bug: 26769293
Change-Id: Ia6d67e1bd60294893e1f0959ccd25bcc3fffbbab
1 file changed
tree: 2fedab22083b1b55cacca2aa0723b199302cd9d7
  1. sl4a/
  2. sl4n/