Index: ios/web/web_state/web_state_observer_bridge.mm |
diff --git a/ios/web/web_state/web_state_observer_bridge.mm b/ios/web/web_state/web_state_observer_bridge.mm |
index 04a67543ac7e3ab86bf5e0d94169253326159b0f..81b91e15424a3c980f0863801357f269a90b8a3e 100644 |
--- a/ios/web/web_state/web_state_observer_bridge.mm |
+++ b/ios/web/web_state/web_state_observer_bridge.mm |
@@ -4,6 +4,10 @@ |
#import "ios/web/public/web_state/web_state_observer_bridge.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
WebStateObserverBridge::WebStateObserverBridge(web::WebState* webState, |