Index: ios/web/web_state/web_state.mm |
diff --git a/ios/web/web_state/web_state.mm b/ios/web/web_state/web_state.mm |
index ad5791d633b0a2f4bc7ca9c410407f40191f5d38..55ece67aa809f42f1986fe511d289203c4a39842 100644 |
--- a/ios/web/web_state/web_state.mm |
+++ b/ios/web/web_state/web_state.mm |
@@ -4,6 +4,10 @@ |
#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 { |
WebState::CreateParams::CreateParams(web::BrowserState* browser_state) |