Merge changes Ieef54d84,Ica3e88c2

* changes:
  Remove NetworkStack dependencies on hidden members
  Expose ServiceSpecificException as @SystemApi.
tree: f4f8886af83275c546856793d2ffdb1d2f3ea72b
  1. src/
  2. tests/
  3. Android.bp
  4. AndroidManifest.xml