Index: ios/web/public/web_state/page_viewport_state_unittest.mm |
diff --git a/ios/web/public/web_state/page_viewport_state_unittest.mm b/ios/web/public/web_state/page_viewport_state_unittest.mm |
index 9e266b7ff101f3fbea81ee3b00f3527b9b008cc9..c2f67695e071ba323c813b7b25b698ff0219e10f 100644 |
--- a/ios/web/public/web_state/page_viewport_state_unittest.mm |
+++ b/ios/web/public/web_state/page_viewport_state_unittest.mm |
@@ -8,6 +8,10 @@ |
#include "testing/gtest/include/gtest/gtest.h" |
#include "url/gurl.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace web { |
// Verifies viewport length construction for "device-width" and "device-height". |