[Sync] SyncEngine refactor part 2: SyncServiceBase.

components/sync/driver/glue/sync_backend_host_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/sync/driver/glue/sync_backend_host_impl.h"
 
 #include <cstddef>
 #include <utility>
 
 #include "base/files/file_util.h"
@@ skipping 195 matching lines @@
 
   // Synchronously initializes the backend.
   void InitializeBackend(bool expect_success) {
     EXPECT_CALL(mock_host_, OnEngineInitialized(_, _, _, _, expect_success))
         .WillOnce(InvokeWithoutArgs(QuitMessageLoop));
     SyncEngine::HttpPostProviderFactoryGetter
         http_post_provider_factory_getter =
             base::Bind(&NetworkResources::GetHttpPostProviderFactory,
                        base::Unretained(network_resources_.get()), nullptr,
                        base::Bind(&EmptyNetworkTimeUpdate));
-    backend_->Initialize(
-        &mock_host_, sync_thread_.task_runner(), WeakHandle<JsEventHandler>(),
-        GURL(std::string()), std::string(), credentials_, true, false,
-        base::FilePath(), std::move(fake_manager_factory_),
+
+    SyncEngine::InitParams params;
+    params.sync_task_runner = sync_thread_.task_runner();
+    params.host = &mock_host_;
+    params.registrar = base::MakeUnique<SyncBackendRegistrar>(
+        std::string(), base::Bind(&SyncClient::CreateModelWorkerForGroup,
+                                  base::Unretained(&sync_client_)));
+    params.http_factory_getter = http_post_provider_factory_getter;
+    params.credentials = credentials_;
+    params.sync_manager_factory = std::move(fake_manager_factory_);
+    params.delete_sync_data_folder = true;
+    params.unrecoverable_error_handler =
         MakeWeakHandle(test_unrecoverable_error_handler_.GetWeakPtr()),
-        base::Closure(), http_post_provider_factory_getter,
-        std::move(saved_nigori_state_));
+    params.saved_nigori_state = std::move(saved_nigori_state_);
+    sync_prefs_->GetInvalidationVersions(&params.invalidation_versions);
+
+    backend_->Initialize(std::move(params));
+
     base::RunLoop run_loop;
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, run_loop.QuitClosure(), TestTimeouts::action_timeout());
     run_loop.Run();
     // |fake_manager_factory_|'s fake_manager() is set on the sync
     // thread, but we can rely on the message loop barriers to
     // guarantee that we see the updated value.
     DCHECK(fake_manager_);
   }
 
@@ skipping 588 matching lines @@
   backend_->StopSyncingForShutdown();
   // Verify that call to DeactivateNonBlockingDataType doesn't assert.
   backend_->DeactivateNonBlockingDataType(AUTOFILL);
   backend_->Shutdown(STOP_SYNC);
   backend_.reset();
 }
 
 }  // namespace
 
 }  // namespace syncer