[Sync] Move //components/sync to the syncer namespace.

ios/chrome/browser/sync/sync_setup_service.cc

Index: ios/chrome/browser/sync/sync_setup_service.cc
diff --git a/ios/chrome/browser/sync/sync_setup_service.cc b/ios/chrome/browser/sync/sync_setup_service.cc
index ae0ac629290bd570788589688a4844e1e7814e31..b8a8b4393db55d1be32c146e01c2b316e76da482 100644
--- a/ios/chrome/browser/sync/sync_setup_service.cc
+++ b/ios/chrome/browser/sync/sync_setup_service.cc
@@ -27,7 +27,7 @@ syncer::ModelType kDataTypes[] = {
 };
 }  // namespace
 
-SyncSetupService::SyncSetupService(sync_driver::SyncService* sync_service,
+SyncSetupService::SyncSetupService(syncer::SyncService* sync_service,
                                    PrefService* prefs)
     : sync_service_(sync_service), prefs_(prefs) {
   DCHECK(sync_service_);
@@ -92,7 +92,7 @@ bool SyncSetupService::UserActionIsRequiredToHaveSyncWork() {
 }
 
 bool SyncSetupService::IsSyncingAllDataTypes() const {
-  sync_driver::SyncPrefs sync_prefs(prefs_);
+  syncer::SyncPrefs sync_prefs(prefs_);
   return sync_prefs.HasKeepEverythingSynced();
 }
 
@@ -195,6 +195,6 @@ void SyncSetupService::SetSyncEnabledWithoutChangingDatatypes(
   } else {
     UMA_HISTOGRAM_ENUMERATION("Sync.StopSource", syncer::CHROME_SYNC_SETTINGS,
                               syncer::STOP_SOURCE_LIMIT);
-    sync_service_->RequestStop(sync_driver::SyncService::KEEP_DATA);
+    sync_service_->RequestStop(syncer::SyncService::KEEP_DATA);
   }
 }