Index: ios/web/web_state/web_state_weak_ptr_factory.mm |
diff --git a/ios/web/web_state/web_state_weak_ptr_factory.mm b/ios/web/web_state/web_state_weak_ptr_factory.mm |
index 3b93e4b12d0f0cd64384416dc5e4556d56ec1a76..2b94ef4ac88c10a4d4fde23587b012f30d307b31 100644 |
--- a/ios/web/web_state/web_state_weak_ptr_factory.mm |
+++ b/ios/web/web_state/web_state_weak_ptr_factory.mm |
@@ -6,6 +6,10 @@ |
#import "ios/web/public/web_state/web_state.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
// static |