Replace deprecated base::NonThreadSafe in components/sync_preferences in favor of SequenceChecker.

components/sync_preferences/pref_model_associator.cc

 // Copyright (c) 2012 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_preferences/pref_model_associator.h"
 
 #include <algorithm>
 #include <iterator>
 #include <utility>
 
@@ skipping 45 matching lines @@
 }  // namespace
 
 PrefModelAssociator::PrefModelAssociator(
     const PrefModelAssociatorClient* client,
     syncer::ModelType type)
     : models_associated_(false),
       processing_syncer_changes_(false),
       pref_service_(NULL),
       type_(type),
       client_(client) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(type_ == PREFERENCES || type_ == PRIORITY_PREFERENCES);
 }
 
 PrefModelAssociator::~PrefModelAssociator() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   pref_service_ = NULL;
 
   synced_pref_observers_.clear();
 }
 
 void PrefModelAssociator::InitPrefAndAssociate(
     const syncer::SyncData& sync_pref,
     const std::string& pref_name,
     syncer::SyncChangeList* sync_changes) {
   const base::Value* user_pref_value =
@@ skipping 77 matching lines @@
   else
     callback.Run();
 }
 
 syncer::SyncMergeResult PrefModelAssociator::MergeDataAndStartSyncing(
     syncer::ModelType type,
     const syncer::SyncDataList& initial_sync_data,
     std::unique_ptr<syncer::SyncChangeProcessor> sync_processor,
     std::unique_ptr<syncer::SyncErrorFactory> sync_error_factory) {
   DCHECK_EQ(type_, type);
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(pref_service_);
   DCHECK(!sync_processor_.get());
   DCHECK(sync_processor.get());
   DCHECK(sync_error_factory.get());
   syncer::SyncMergeResult merge_result(type);
   sync_processor_ = std::move(sync_processor);
   sync_error_factory_ = std::move(sync_error_factory);
 
   syncer::SyncChangeList new_changes;
   std::set<std::string> remaining_preferences = registered_preferences_;
@@ skipping 351 matching lines @@
                                                     bool from_sync) const {
   auto observer_iter = synced_pref_observers_.find(path);
   if (observer_iter == synced_pref_observers_.end())
     return;
   SyncedPrefObserverList* observers = observer_iter->second.get();
   for (auto& observer : *observers)
     observer.OnSyncedPrefChanged(path, from_sync);
 }
 
 }  // namespace sync_preferences