Index: ios/chrome/browser/about_flags.mm |
diff --git a/ios/chrome/browser/about_flags.mm b/ios/chrome/browser/about_flags.mm |
index a802cb390371f2ef36cc09820e04a646a4f35abe..3b2439f39cb8726b85eb3de13886d50a81a0be5d 100644 |
--- a/ios/chrome/browser/about_flags.mm |
+++ b/ios/chrome/browser/about_flags.mm |
@@ -38,6 +38,10 @@ |
#include "components/variations/variations_switches.h" |
#endif |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace { |
// To add a new entry, add to the end of kFeatureEntries. There are two |
// distinct types of entries: |