Index: ios/web/interstitials/native_web_interstitial_impl.mm |
diff --git a/ios/web/interstitials/native_web_interstitial_impl.mm b/ios/web/interstitials/native_web_interstitial_impl.mm |
index a2a86dd7cc7a6ab5e153232157983295b05eb6a4..04941e78d628e3662ebcc8b17a41ed8b24ff1925 100644 |
--- a/ios/web/interstitials/native_web_interstitial_impl.mm |
+++ b/ios/web/interstitials/native_web_interstitial_impl.mm |
@@ -12,6 +12,10 @@ |
#include "ios/web/web_state/web_state_impl.h" |
#include "ui/gfx/geometry/size.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
// static |