Index: ios/chrome/browser/ui/settings/utils/pref_backed_boolean.mm |
diff --git a/ios/chrome/browser/ui/settings/utils/pref_backed_boolean.mm b/ios/chrome/browser/ui/settings/utils/pref_backed_boolean.mm |
index 4cf0491aa700a6917b93d7eec5013a8e1f2b2322..09e4a3786f14abb4cd2fabbef40c71a47df84e97 100644 |
--- a/ios/chrome/browser/ui/settings/utils/pref_backed_boolean.mm |
+++ b/ios/chrome/browser/ui/settings/utils/pref_backed_boolean.mm |
@@ -8,6 +8,10 @@ |
#include "components/prefs/pref_member.h" |
#include "components/prefs/pref_service.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace { |
// Adaptor function to allow invoking onChange as a base::Closure. |