Index: ios/chrome/browser/web/blocked_popup_tab_helper.mm |
diff --git a/ios/chrome/browser/web/blocked_popup_tab_helper.mm b/ios/chrome/browser/web/blocked_popup_tab_helper.mm |
index 7595d28e3b9e54bd2e1ae192dcf7ab202c34e06e..e3bd545e28ac45283b8850189c5fe5ee35f8beac 100644 |
--- a/ios/chrome/browser/web/blocked_popup_tab_helper.mm |
+++ b/ios/chrome/browser/web/blocked_popup_tab_helper.mm |
@@ -27,6 +27,10 @@ |
#include "ui/base/l10n/l10n_util.h" |
#include "ui/gfx/image/image.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
DEFINE_WEB_STATE_USER_DATA_KEY(BlockedPopupTabHelper); |
namespace { |