[Sync] Fix namespace for sync_driver component

components/sync_driver/data_type_controller_mock.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_SYNC_DRIVER_DATA_TYPE_CONTROLLER_MOCK_H__
 #define COMPONENTS_SYNC_DRIVER_DATA_TYPE_CONTROLLER_MOCK_H__
 
 #include "components/sync_driver/data_type_controller.h"
 #include "sync/api/sync_error.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
-namespace browser_sync {
+namespace sync_driver {
 
 class StartCallbackMock {
  public:
   StartCallbackMock();
   virtual ~StartCallbackMock();
 
   MOCK_METHOD3(Run, void(DataTypeController::StartResult result,
                          const syncer::SyncMergeResult& local_merge_result,
                          const syncer::SyncMergeResult& syncer_merge_result));
 };
 
 class ModelLoadCallbackMock {
  public:
   ModelLoadCallbackMock();
   virtual ~ModelLoadCallbackMock();
 
   MOCK_METHOD2(Run, void(syncer::ModelType, syncer::SyncError));
 };
 
-}  // namespace browser_sync
+}  // namespace sync_driver
 
 #endif  // COMPONENTS_SYNC_DRIVER_DATA_TYPE_CONTROLLER_MOCK_H__