root/sync/api/attachments/

[..]
  1. attachment.cc
  2. attachment.h
  3. attachment_id.cc
  4. attachment_id.h
  5. attachment_id_unittest.cc
  6. attachment_service.cc
  7. attachment_service.h
  8. attachment_service_proxy.cc
  9. attachment_service_proxy.h
  10. attachment_service_proxy_unittest.cc
  11. attachment_store.cc
  12. attachment_store.h
  13. attachment_unittest.cc
  14. fake_attachment_service.cc
  15. fake_attachment_service.h
  16. fake_attachment_store.cc
  17. fake_attachment_store.h
  18. fake_attachment_store_unittest.cc
[..]