Index: ios/chrome/browser/ui/ntp/new_tab_page_header_constants.mm |
diff --git a/ios/chrome/browser/ui/ntp/new_tab_page_header_constants.mm b/ios/chrome/browser/ui/ntp/new_tab_page_header_constants.mm |
index 7265ad220047a0a21db84d27b7e69881f7d1e1f4..84fe6650f69e2e819c60df14de4b61ad56b5bd71 100644 |
--- a/ios/chrome/browser/ui/ntp/new_tab_page_header_constants.mm |
+++ b/ios/chrome/browser/ui/ntp/new_tab_page_header_constants.mm |
@@ -4,6 +4,10 @@ |
#import "ios/chrome/browser/ui/ntp/new_tab_page_header_constants.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace ntp_header { |
const CGFloat kMinHeaderHeight = 62; |