Index: ios/web/history_state_util.mm |
diff --git a/ios/web/history_state_util.mm b/ios/web/history_state_util.mm |
index bdb11bce32bd95b82d608ffe1d2d0666e19ffa39..a1ef1884530d677e3ab0aadfa3a7ab7b46c0021e 100644 |
--- a/ios/web/history_state_util.mm |
+++ b/ios/web/history_state_util.mm |
@@ -7,6 +7,10 @@ |
#include "base/logging.h" |
#include "url/gurl.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
namespace history_state_util { |