[shill] Enable objects to query an opaque RPC-system ID from Adaptors
This is needed for some properties. For example Service has a property called Device, which is expected
to return a (in the current impl) a DBus path for the associated Device object.
BUG=chromium-os:16343
TEST=unit tests
Change-Id: I8bd32ab483331efabbfee05dbdeba045c7cb20da
Reviewed-on: http://gerrit.chromium.org/gerrit/3417
Reviewed-by: Chris Masone <cmasone@chromium.org>
Tested-by: Chris Masone <cmasone@chromium.org>
22 files changed