Index: ios/web/web_state/ui/crw_touch_tracking_recognizer.mm |
diff --git a/ios/web/web_state/ui/crw_touch_tracking_recognizer.mm b/ios/web/web_state/ui/crw_touch_tracking_recognizer.mm |
index 0b93d0d8de966bc818431e8fb608c69dbfed941f..e9d12be06d329bef2f0e57056c7814c00ef65877 100644 |
--- a/ios/web/web_state/ui/crw_touch_tracking_recognizer.mm |
+++ b/ios/web/web_state/ui/crw_touch_tracking_recognizer.mm |
@@ -4,8 +4,12 @@ |
#import "ios/web/web_state/ui/crw_touch_tracking_recognizer.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
@interface CRWTouchTrackingRecognizer () <UIGestureRecognizerDelegate> { |
- id<CRWTouchTrackingDelegate> _delegate; // weak |
+ id<CRWTouchTrackingDelegate> __weak _delegate; |
} |
@end |