Index: ios/web/webui/shared_resources_data_source_ios.mm |
diff --git a/ios/web/webui/shared_resources_data_source_ios.mm b/ios/web/webui/shared_resources_data_source_ios.mm |
index affb9cf604e038aa3e83217f78962259a550cdef..4d9e78a10d6240829c71d6fa963fc91cdb0ab1a3 100644 |
--- a/ios/web/webui/shared_resources_data_source_ios.mm |
+++ b/ios/web/webui/shared_resources_data_source_ios.mm |
@@ -15,6 +15,10 @@ |
#include "ui/resources/grit/webui_resources.h" |
#include "ui/resources/grit/webui_resources_map.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
namespace { |