This makes the code clearer, and also fixes a bug: currently, a
TRACK_DEFAULT request in a multilayer request can cause a network
to remain needed. This is incorrect: only requests should be able
to keep a network up.
This prevents satellite networking from disconnecting when the
default network reappears (see changes in unit test).
This CL removes the code before the loop that special-cases
non-multilayer listens because it is not very useful. Any
non-multilayer listen will either:
- Immediately return false, if it's the active request, or:
- Cause the code to continue (because it's not the active
request), and because mRequests only has one element, will
hit the "return false" statement after the loop.
Flag: EXEMPT bug fix
Test: covered by existing tests
Change-Id: I7295ce469335af924aa20b7976cc4a9136ef5d61
dd577efdde