Index: ios/chrome/browser/physical_web/create_physical_web_data_source.mm |
diff --git a/ios/chrome/browser/physical_web/create_physical_web_data_source.mm b/ios/chrome/browser/physical_web/create_physical_web_data_source.mm |
index 5844c61f279685f2c663a68def164f258de8ef48..df210f785122c2a756802ee7609082bb830dd2cf 100644 |
--- a/ios/chrome/browser/physical_web/create_physical_web_data_source.mm |
+++ b/ios/chrome/browser/physical_web/create_physical_web_data_source.mm |
@@ -7,6 +7,10 @@ |
#include "base/memory/ptr_util.h" |
#import "ios/chrome/browser/physical_web/ios_chrome_physical_web_data_source.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
std::unique_ptr<physical_web::PhysicalWebDataSource> |
CreateIOSChromePhysicalWebDataSource(PrefService* prefService) { |
return base::MakeUnique<IOSChromePhysicalWebDataSource>(prefService); |