[Merge M56] arc: Restore UMA statistics for failures in LSO flow.

chrome/browser/chromeos/arc/arc_auth_service.h

Index: chrome/browser/chromeos/arc/arc_auth_service.h
diff --git a/chrome/browser/chromeos/arc/arc_auth_service.h b/chrome/browser/chromeos/arc/arc_auth_service.h
index b2755125ac34765634fb16fc62add8fda7558712..1526ae9aa54a7c7cd9eced60b8d0124ba3eddfd8 100644
--- a/chrome/browser/chromeos/arc/arc_auth_service.h
+++ b/chrome/browser/chromeos/arc/arc_auth_service.h
@@ -208,6 +208,8 @@ class ArcAuthService : public ArcService,
                      bool is_backup_and_restore_enabled,
                      bool is_location_service_enabled) override;
   void OnAuthSucceeded(const std::string& auth_code) override;
+  void OnAuthFailed() override;
+
   void OnRetryClicked() override;
   void OnSendFeedbackClicked() override;