Index: ios/chrome/common/app_group/app_group_metrics_client.mm |
diff --git a/ios/chrome/common/app_group/app_group_metrics_client.mm b/ios/chrome/common/app_group/app_group_metrics_client.mm |
index b458222403f1ad897eb23cf4a013cd49cc8d7ece..4883f30b8856661fb4e324ec4fb0fa3746a14160 100644 |
--- a/ios/chrome/common/app_group/app_group_metrics_client.mm |
+++ b/ios/chrome/common/app_group/app_group_metrics_client.mm |
@@ -9,6 +9,10 @@ |
#include "ios/chrome/common/app_group/app_group_constants.h" |
#include "ios/chrome/common/app_group/app_group_metrics.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace { |
// Number of log files to keep in the |kPendingLogFileDirectory|. Any older file |