Index: ios/chrome/app/startup/ios_chrome_main.mm |
diff --git a/ios/chrome/app/startup/ios_chrome_main.mm b/ios/chrome/app/startup/ios_chrome_main.mm |
index bbd9cbba569731c90e6dbec66071c5ecd5e759a1..d3ff28ae32739cf1d28c5d67213af68c08a6c5d0 100644 |
--- a/ios/chrome/app/startup/ios_chrome_main.mm |
+++ b/ios/chrome/app/startup/ios_chrome_main.mm |
@@ -13,6 +13,10 @@ |
#include "base/time/time.h" |
#include "ios/web/public/app/web_main_runner.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace { |
base::Time* g_start_time; |
} // namespace |