Index: ios/chrome/browser/about_flags.mm |
diff --git a/ios/chrome/browser/about_flags.mm b/ios/chrome/browser/about_flags.mm |
index 4fbfd94f8c094bd904a8897c74c8dbf4201b0ae3..e22ddc8e6ff36d0cb22d0841f8f32512b4fbf725 100644 |
--- a/ios/chrome/browser/about_flags.mm |
+++ b/ios/chrome/browser/about_flags.mm |
@@ -38,6 +38,10 @@ |
#if !defined(OFFICIAL_BUILD) |
#include "components/variations/variations_switches.h" |
+ |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
#endif |
namespace { |