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

components/sync/driver/fake_sync_service.cc

 // Copyright 2015 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/fake_sync_service.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "components/sync/core/base_transaction.h"
 #include "components/sync/core/user_share.h"
+#include "components/sync/driver/data_type_controller.h"
 #include "components/sync/engine/cycle/sync_cycle_snapshot.h"
 
 namespace sync_driver {
 
 FakeSyncService::FakeSyncService()
     : error_(GoogleServiceAuthError::NONE),
       user_share_(base::MakeUnique<syncer::UserShare>()) {}
 
 FakeSyncService::~FakeSyncService() {}
 
@@ skipping 112 matching lines @@
 
 syncer::UserShare* FakeSyncService::GetUserShare() const {
   return user_share_.get();
 }
 
 LocalDeviceInfoProvider* FakeSyncService::GetLocalDeviceInfoProvider() const {
   return nullptr;
 }
 
 void FakeSyncService::RegisterDataTypeController(
-    sync_driver::DataTypeController* data_type_controller) {}
+    std::unique_ptr<sync_driver::DataTypeController> data_type_controller) {}
 
 void FakeSyncService::ReenableDatatype(syncer::ModelType type) {}
 
 bool FakeSyncService::IsPassphraseRequired() const {
   return false;
 }
 
 syncer::ModelTypeSet FakeSyncService::GetEncryptedDataTypes() const {
   return syncer::ModelTypeSet();
 }
@@ skipping 52 matching lines @@
     syncer::TypeDebugInfoObserver* observer) {}
 
 base::WeakPtr<syncer::JsController> FakeSyncService::GetJsController() {
   return base::WeakPtr<syncer::JsController>();
 }
 
 void FakeSyncService::GetAllNodes(
     const base::Callback<void(std::unique_ptr<base::ListValue>)>& callback) {}
 
 }  // namespace sync_driver