Avoid shipping standalone_service

chromiumcontent/build_libs.py

@@ -184,7 +184,8 @@ with open(args.out, 'w') as out:
             "services/catalog",
             "services/device",
             "services/file",
-            "services/service_manager/public",
+            "services/service_manager/public/cpp/sources",
+            "services/service_manager/public/interfaces",
             "services/service_manager/runner",
             "services/service_manager/service_manager",
             "services/shape_detection",