Remove duplicated user_prefs::TestingPrefServiceSyncable

components/signin/ios/browser/account_consistency_service_unittest.mm

Index: components/signin/ios/browser/account_consistency_service_unittest.mm
diff --git a/components/signin/ios/browser/account_consistency_service_unittest.mm b/components/signin/ios/browser/account_consistency_service_unittest.mm
index 6a271f18dfe5134b1fc287e831a12ce829793ca3..de01db8e6b8d7c646049c73a003ceec5d379b9a8 100644
--- a/components/signin/ios/browser/account_consistency_service_unittest.mm
+++ b/components/signin/ios/browser/account_consistency_service_unittest.mm
@@ -9,13 +9,13 @@
 #include <memory>
 
 #import "base/mac/scoped_nsobject.h"
-#include "components/pref_registry/testing_pref_service_syncable.h"
 #include "components/signin/core/browser/account_reconcilor.h"
 #include "components/signin/core/browser/account_tracker_service.h"
 #include "components/signin/core/browser/fake_signin_manager.h"
 #include "components/signin/core/browser/gaia_cookie_manager_service.h"
 #include "components/signin/core/browser/test_signin_client.h"
 #include "components/signin/core/common/signin_pref_names.h"
+#include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "ios/web/public/test/test_browser_state.h"
 #include "ios/web/public/test/test_web_state.h"
@@ -202,7 +202,7 @@ void CheckDomainHasCookie(const std::string& domain) {
   MockAccountReconcilor account_reconcilor_;
   AccountTrackerService account_tracker_service_;
   web::TestBrowserState browser_state_;
-  user_prefs::TestingPrefServiceSyncable prefs_;
+  sync_preferences::TestingPrefServiceSyncable prefs_;
   TestWebState web_state_;
   // AccountConsistencyService being tested. Actually a
   // FakeAccountConsistencyService to be able to use a mock web view.