Index: ios/web/crw_network_activity_indicator_manager.mm |
diff --git a/ios/web/crw_network_activity_indicator_manager.mm b/ios/web/crw_network_activity_indicator_manager.mm |
index 683e293e4757345b5ad5ac6c1ec4a97381fdae07..36be81b950b659fd830943b66a45311082a5f325 100644 |
--- a/ios/web/crw_network_activity_indicator_manager.mm |
+++ b/ios/web/crw_network_activity_indicator_manager.mm |
@@ -10,6 +10,10 @@ |
#include "base/mac/scoped_nsobject.h" |
#include "base/threading/thread_checker.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
@interface CRWNetworkActivityIndicatorManager () { |
base::scoped_nsobject<NSMutableDictionary> _groupCounts; |
NSUInteger _totalCount; |