Task Scheduler API migration: change BrowserThreadModelWorker to SequencedModelWorker

chrome/browser/sync/chrome_sync_client.cc

Index: chrome/browser/sync/chrome_sync_client.cc
diff --git a/chrome/browser/sync/chrome_sync_client.cc b/chrome/browser/sync/chrome_sync_client.cc
index 3b9ef88baf7c230f0af987aaeb90ad20ce92b44b..4b3cf92dab10631f51bda74c266fbd3782cc232b 100644
--- a/chrome/browser/sync/chrome_sync_client.cc
+++ b/chrome/browser/sync/chrome_sync_client.cc
@@ -65,8 +65,8 @@
 #include "components/sync/driver/async_directory_type_controller.h"
 #include "components/sync/driver/sync_api_component_factory.h"
 #include "components/sync/driver/sync_util.h"
-#include "components/sync/engine/browser_thread_model_worker.h"
 #include "components/sync/engine/passive_model_worker.h"
+#include "components/sync/engine/sequenced_model_worker.h"
 #include "components/sync/engine/ui_model_worker.h"
 #include "components/sync/user_events/user_event_service.h"
 #include "components/sync_preferences/pref_service_syncable.h"
@@ -533,11 +533,11 @@ ChromeSyncClient::CreateModelWorkerForGroup(syncer::ModelSafeGroup group) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   switch (group) {
     case syncer::GROUP_DB:
-      return new syncer::BrowserThreadModelWorker(
+      return new syncer::SequencedModelWorker(
           BrowserThread::GetTaskRunnerForThread(BrowserThread::DB),
           syncer::GROUP_DB);
     case syncer::GROUP_FILE:
-      return new syncer::BrowserThreadModelWorker(
+      return new syncer::SequencedModelWorker(
           BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE),
           syncer::GROUP_FILE);
     case syncer::GROUP_UI: