network_manager: Explicitly capture references in cb

We were accidentally capturing a reference to a stack variable and not
guaranteeing that we have an unmoving reference to the object being
referenced in the callback.

Change-Id: Ib16d264a5a1170ac6d11979d32800dce90a11a33
Signed-off-by: William A. Kennington III <wak@google.com>
1 file changed