[Sync] Merge NBDTC and subclasses into ModelTypeController.

components/sync/driver/ui_model_type_controller.cc

Index: components/sync/driver/ui_model_type_controller.cc
diff --git a/components/sync/driver/ui_model_type_controller.cc b/components/sync/driver/ui_model_type_controller.cc
deleted file mode 100644
index fcae6fcbaa3e03910dea789ee6ac80608064ed77..0000000000000000000000000000000000000000
--- a/components/sync/driver/ui_model_type_controller.cc
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2016 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 "components/sync/driver/ui_model_type_controller.h"
-
-#include "components/sync/api/model_type_service.h"
-#include "components/sync/base/model_type.h"
-#include "components/sync/core/activation_context.h"
-#include "components/sync/driver/sync_client.h"
-
-namespace syncer {
-
-UIModelTypeController::UIModelTypeController(ModelType type,
-                                             const base::Closure& dump_stack,
-                                             SyncClient* sync_client)
-    : NonBlockingDataTypeController(type, dump_stack, sync_client) {}
-
-UIModelTypeController::~UIModelTypeController() {}
-
-bool UIModelTypeController::RunOnModelThread(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task) {
-  DCHECK(CalledOnValidThread());
-  task.Run();
-  return true;
-}
-
-}  // namespace syncer