Index: ios/chrome/browser/infobars/infobar_manager_impl.mm |
diff --git a/ios/chrome/browser/infobars/infobar_manager_impl.mm b/ios/chrome/browser/infobars/infobar_manager_impl.mm |
index d417fef36872df6ba23a7c08fe0f309e3a1d0f83..d907f315a3b87c7396bcf006bdd6529808d62ac5 100644 |
--- a/ios/chrome/browser/infobars/infobar_manager_impl.mm |
+++ b/ios/chrome/browser/infobars/infobar_manager_impl.mm |
@@ -16,6 +16,10 @@ |
#include "ios/web/public/web_state/web_state.h" |
#include "ui/base/page_transition_types.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
DEFINE_WEB_STATE_USER_DATA_KEY(InfoBarManagerImpl); |
namespace { |