Revert of [Sync] Move //components/sync to the syncer namespace. (patchset #5 id:40001 of https://co

ios/chrome/browser/history/web_history_service_factory.cc

Index: ios/chrome/browser/history/web_history_service_factory.cc
diff --git a/ios/chrome/browser/history/web_history_service_factory.cc b/ios/chrome/browser/history/web_history_service_factory.cc
index fdece291070ba6dfab117755b4545834e719591a..931a19839dd1030382750b2e5610bfe57be39bc0 100644
--- a/ios/chrome/browser/history/web_history_service_factory.cc
+++ b/ios/chrome/browser/history/web_history_service_factory.cc
@@ -25,7 +25,7 @@ namespace {
 // Returns true if the user is signed-in and full history sync is enabled,
 // false otherwise.
 bool IsHistorySyncEnabled(ios::ChromeBrowserState* browser_state) {
-  syncer::SyncService* sync_service =
+  sync_driver::SyncService* sync_service =
       IOSChromeProfileSyncServiceFactory::GetForBrowserState(browser_state);
   return sync_service && sync_service->IsSyncActive() &&
          sync_service->GetActiveDataTypes().Has(