[SyncFS] Add generic result reciever

chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h

Index: chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h
diff --git a/chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h b/chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h
index bcb96a0b67a4f88d05c4bbba3930a65ead56e8c5..46ac356995154fd7d32f5c645c1c51d9b85996a5 100644
--- a/chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h
+++ b/chrome/browser/sync_file_system/drive_backend/drive_backend_test_util.h
@@ -38,18 +38,6 @@ void ExpectEquivalentResourceAndMetadata(
 void ExpectEquivalentMetadataAndTracker(const FileMetadata& metadata,
                                         const FileTracker& tracker);
 
-void SyncStatusResultCallback(SyncStatusCode* status_out,
-                              SyncStatusCode status);
-void DatabaseCreateResultCallback(SyncStatusCode* status_out,
-                                  scoped_ptr<MetadataDatabase>* database_out,
-                                  SyncStatusCode status,
-                                  scoped_ptr<MetadataDatabase> database);
-void ResourceEntryResultCallback(
-    google_apis::GDataErrorCode* error_out,
-    scoped_ptr<google_apis::ResourceEntry>* entry_out,
-    google_apis::GDataErrorCode error,
-    scoped_ptr<google_apis::ResourceEntry> entry);
-
 }  // namespace test_util
 }  // namespace drive_backend
 }  // namespace sync_file_system