Index: ios/web/web_state/ui/wk_back_forward_list_item_holder.mm |
diff --git a/ios/web/web_state/ui/wk_back_forward_list_item_holder.mm b/ios/web/web_state/ui/wk_back_forward_list_item_holder.mm |
index f74be49f6fbc9e237c80dd3762e835ca14af25d8..aaec35d6e68c057d6a16fc53a94acbaa65bc1073 100644 |
--- a/ios/web/web_state/ui/wk_back_forward_list_item_holder.mm |
+++ b/ios/web/web_state/ui/wk_back_forward_list_item_holder.mm |
@@ -7,6 +7,10 @@ |
#include "base/memory/ptr_util.h" |
#import "ios/web/public/navigation_item.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
namespace { |