[Sync] Convert DTCs to be not RefCounted and NonThreadSafe.

components/sync/driver/non_ui_model_type_controller.cc

Index: components/sync/driver/non_ui_model_type_controller.cc
diff --git a/components/sync/driver/non_ui_model_type_controller.cc b/components/sync/driver/non_ui_model_type_controller.cc
index 39967bec0b6d3a5c0b36a77838240f3f6c6272cd..330f21931c7f8983baef4c1d03e1bbfa91c23a5e 100644
--- a/components/sync/driver/non_ui_model_type_controller.cc
+++ b/components/sync/driver/non_ui_model_type_controller.cc
@@ -14,22 +14,11 @@ namespace sync_driver_v2 {
 using sync_driver::SyncClient;
 
 NonUIModelTypeController::NonUIModelTypeController(
-    const scoped_refptr<base::SingleThreadTaskRunner>& ui_thread,
-    const base::Closure& error_callback,
-    syncer::ModelType model_type,
+    syncer::ModelType type,
+    const base::Closure& dump_stack,
     SyncClient* sync_client)
-    : NonBlockingDataTypeController(ui_thread,
-                                    error_callback,
-                                    model_type,
-                                    sync_client) {}
+    : NonBlockingDataTypeController(type, dump_stack, sync_client) {}
 
 NonUIModelTypeController::~NonUIModelTypeController() {}
 
-void NonUIModelTypeController::RunOnUIThread(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task) {
-  DCHECK(!BelongsToUIThread());
-  ui_thread()->PostTask(from_here, task);
-}
-
 }  // namespace sync_driver_v2