Index: ios/web/public/test/fakes/test_web_state_observer.mm |
diff --git a/ios/web/public/test/fakes/test_web_state_observer.mm b/ios/web/public/test/fakes/test_web_state_observer.mm |
index c184f6e8132aebd30cd88d855ac72b38cf5098b1..3d9c96bd00e79911cfea67a6c9c1eadc6ee3a77e 100644 |
--- a/ios/web/public/test/fakes/test_web_state_observer.mm |
+++ b/ios/web/public/test/fakes/test_web_state_observer.mm |
@@ -11,6 +11,10 @@ |
#include "net/http/http_response_headers.h" |
#include "testing/gtest/include/gtest/gtest.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
TestWebStateObserver::TestWebStateObserver(WebState* web_state) |