Make TypedUrlSyncableService sequence-affine.

components/history/core/browser/typed_url_syncable_service.cc

Index: components/history/core/browser/typed_url_syncable_service.cc
diff --git a/components/history/core/browser/typed_url_syncable_service.cc b/components/history/core/browser/typed_url_syncable_service.cc
index 0397d59dba97af4b5c396fb181aee936bccd368c..deaf6b27d764c1f3e769ecbec4e52f90be458695 100644
--- a/components/history/core/browser/typed_url_syncable_service.cc
+++ b/components/history/core/browser/typed_url_syncable_service.cc
@@ -71,7 +71,7 @@ TypedUrlSyncableService::TypedUrlSyncableService(
       num_db_errors_(0),
       history_backend_observer_(this) {
   DCHECK(history_backend_);
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
 }
 
 TypedUrlSyncableService::~TypedUrlSyncableService() {
@@ -82,7 +82,7 @@ syncer::SyncMergeResult TypedUrlSyncableService::MergeDataAndStartSyncing(
     const syncer::SyncDataList& initial_sync_data,
     std::unique_ptr<syncer::SyncChangeProcessor> sync_processor,
     std::unique_ptr<syncer::SyncErrorFactory> error_handler) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
   DCHECK(!sync_processor_.get());
   DCHECK(sync_processor.get());
   DCHECK(error_handler.get());
@@ -211,7 +211,7 @@ syncer::SyncMergeResult TypedUrlSyncableService::MergeDataAndStartSyncing(
 }
 
 void TypedUrlSyncableService::StopSyncing(syncer::ModelType type) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
   DCHECK_EQ(type, syncer::TYPED_URLS);
 
   // Clear cache of server state.
@@ -227,7 +227,7 @@ void TypedUrlSyncableService::StopSyncing(syncer::ModelType type) {
 
 syncer::SyncDataList TypedUrlSyncableService::GetAllSyncData(
     syncer::ModelType type) const {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
   syncer::SyncDataList list;
 
   // TODO(sync): Add implementation
@@ -238,7 +238,7 @@ syncer::SyncDataList TypedUrlSyncableService::GetAllSyncData(
 syncer::SyncError TypedUrlSyncableService::ProcessSyncChanges(
     const tracked_objects::Location& from_here,
     const syncer::SyncChangeList& change_list) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
 
   std::vector<GURL> pending_deleted_urls;
   history::URLRows new_synced_urls;
@@ -288,7 +288,7 @@ syncer::SyncError TypedUrlSyncableService::ProcessSyncChanges(
 void TypedUrlSyncableService::OnURLsModified(
     history::HistoryBackend* history_backend,
     const history::URLRows& changed_urls) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
 
   if (processing_syncer_changes_)
     return;  // These are changes originating from us, ignore.
@@ -318,7 +318,7 @@ void TypedUrlSyncableService::OnURLVisited(
     const history::URLRow& row,
     const history::RedirectList& redirects,
     base::Time visit_time) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
 
   if (processing_syncer_changes_)
     return;  // These are changes originating from us, ignore.
@@ -343,7 +343,7 @@ void TypedUrlSyncableService::OnURLsDeleted(
     bool expired,
     const history::URLRows& deleted_rows,
     const std::set<GURL>& favicon_urls) {
-  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(sequence_checker_.CalledOnValidSequence());
 
   if (processing_syncer_changes_)
     return;  // These are changes originating from us, ignore.