[Sync] Fix namespace for sync_driver component

components/sync_driver/model_association_manager_unittest.cc

 // 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.
 
 #include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "components/sync_driver/fake_data_type_controller.h"
 #include "components/sync_driver/model_association_manager.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
-namespace browser_sync {
+
+namespace sync_driver {
+
 class MockModelAssociationManagerDelegate :
     public ModelAssociationManagerDelegate {
  public:
   MockModelAssociationManagerDelegate() {}
   ~MockModelAssociationManagerDelegate() {}
   MOCK_METHOD2(OnSingleDataTypeAssociationDone,
       void(syncer::ModelType type,
       const syncer::DataTypeAssociationStats& association_stats));
   MOCK_METHOD1(OnSingleDataTypeWillStop, void(syncer::ModelType));
   MOCK_METHOD1(OnModelAssociationDone, void(
@@ skipping 357 matching lines @@
               WillOnce(VerifyResult(expected_result));
 
   model_association_manager.Initialize(types);
   EXPECT_EQ(DataTypeController::DISABLED,
             GetController(controllers_, syncer::BOOKMARKS)->state());
   model_association_manager.StartAssociationAsync(types);
   EXPECT_EQ(DataTypeController::NOT_RUNNING,
             GetController(controllers_, syncer::BOOKMARKS)->state());
 }
 
-}  // namespace browser_sync
+}  // namespace sync_driver