Index: ios/chrome/app/startup/background_upload_alert.mm |
diff --git a/ios/chrome/app/startup/background_upload_alert.mm b/ios/chrome/app/startup/background_upload_alert.mm |
index 6b4b399b9af6300ea7edf4615f14e08638bed4bc..3a3f7e74eb5099b73dfaa9a9aa610672d93a9b03 100644 |
--- a/ios/chrome/app/startup/background_upload_alert.mm |
+++ b/ios/chrome/app/startup/background_upload_alert.mm |
@@ -6,6 +6,10 @@ |
#include "ios/chrome/browser/experimental_flags.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
@implementation BackgroundUploadAlert |
+ (void)setupBackgroundUploadAlert { |