[Sync] Fix namespace for sync_driver component

chrome/browser/sync/backend_migrator_unittest.cc

 // Copyright (c) 2012 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 "chrome/browser/sync/backend_migrator.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/tracked_objects.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/sync/profile_sync_service_mock.h"
 #include "components/sync_driver/data_type_manager_mock.h"
 #include "sync/internal_api/public/base/model_type_test_util.h"
 #include "sync/internal_api/public/test/test_user_share.h"
 #include "sync/internal_api/public/write_transaction.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/syncable/directory.h"  // TODO(tim): Remove. Bug 131130.
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::Eq;
 using ::testing::Mock;
 using ::testing::NiceMock;
 using ::testing::Return;
+using sync_driver::DataTypeManager;
+using sync_driver::DataTypeManagerMock;
 
 namespace browser_sync {
 
 using syncer::sessions::SyncSessionSnapshot;
 
 class SyncBackendMigratorTest : public testing::Test {
  public:
   SyncBackendMigratorTest() : service_(&profile_) { }
   virtual ~SyncBackendMigratorTest() { }
 
@@ skipping 298 matching lines @@
   EXPECT_CALL(
       *manager(),
       PurgeForMigration(_, syncer::CONFIGURE_REASON_MIGRATION)).Times(1);
   migrator()->MigrateTypes(to_migrate);
   SetUnsyncedTypes(syncer::ModelTypeSet());
   SendConfigureDone(DataTypeManager::ABORTED, syncer::ModelTypeSet());
   EXPECT_EQ(BackendMigrator::IDLE, migrator()->state());
 }
 
 };  // namespace browser_sync