veyron/runtimes/google/ipc: refactor Listen loop code.

- deleted commented out old code.
- cleaned up Listen implementation, the only behavioural difference
is that we now publish both local+proxy addresses for objects that
are being proxied.
- cleaned up the proxy retry loop.
- made it possible to use the proxy without a local listener.

Change-Id: Id10fe1e115119ad64a4b80b15596c6c945732afc
4 files changed
tree: 64d03f5f3235e11438dc40b4dd5b734592354471
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/