[Sync] Cleanup datatype configuration error handling.

chrome/browser/sync/backend_migrator_unittest.cc

Index: chrome/browser/sync/backend_migrator_unittest.cc
diff --git a/chrome/browser/sync/backend_migrator_unittest.cc b/chrome/browser/sync/backend_migrator_unittest.cc
index 3550aa9b75e60d6facf4a31927c36893300dd43d..7736e8708e555eb0bdc7189f81ff2c48dc689e50 100644
--- a/chrome/browser/sync/backend_migrator_unittest.cc
+++ b/chrome/browser/sync/backend_migrator_unittest.cc
@@ -79,13 +79,9 @@ class SyncBackendMigratorTest : public testing::Test {
       DataTypeManager::ConfigureResult result(status, requested_types);
       migrator_->OnConfigureDone(result);
     } else {
-      std::map<syncer::ModelType, syncer::SyncError> errors;
       DataTypeManager::ConfigureResult result(
           status,
-          requested_types,
-          errors,
-          syncer::ModelTypeSet(),
-          syncer::ModelTypeSet());
+          requested_types);
       migrator_->OnConfigureDone(result);
     }
     message_loop_.RunUntilIdle();