[Sync] Fix namespace for sync_driver component

components/sync_driver/fake_data_type_controller.h

Index: components/sync_driver/fake_data_type_controller.h
diff --git a/components/sync_driver/fake_data_type_controller.h b/components/sync_driver/fake_data_type_controller.h
index c0e5fef99eae65934d50dd00f17d834df927fc42..4fa5f7b32c20fb0b0c248ba3f22893606de64a15 100644
--- a/components/sync_driver/fake_data_type_controller.h
+++ b/components/sync_driver/fake_data_type_controller.h
@@ -8,7 +8,8 @@
 #include "components/sync_driver/data_type_controller.h"
 #include "components/sync_driver/data_type_manager.h"
 
-namespace browser_sync {
+namespace sync_driver {
+
 // Fake DataTypeController implementation that simulates the state
 // machine of a typical asynchronous data type.
 //
@@ -65,5 +66,6 @@ class FakeDataTypeController : public DataTypeController {
   syncer::SyncError load_error_;
 };
 
-}  // namespace browser_sync
+}  // namespace sync_driver
+
 #endif  // COMPONENTS_SYNC_DRIVER_FAKE_DATA_TYPE_CONTROLLER_H__