syncbase: implement various mojo stubs

as part of this, adds all the glue needed to synthesize
ctx and call, etc.

Change-Id: I273e3bdcdfa9a0bd59379e4889631616777d321a
4 files changed
tree: e82f2117c0abb62287735e99e66522b27c467560
  1. services/
  2. syncbase/