Index: ios/chrome/test/earl_grey/chrome_util.mm |
diff --git a/ios/chrome/test/earl_grey/chrome_util.mm b/ios/chrome/test/earl_grey/chrome_util.mm |
index 02a8d31c3b982445c759df1f7c824bab51ae28a6..57c49fc732d47efada9a45769a8bcf5b3a6f62a7 100644 |
--- a/ios/chrome/test/earl_grey/chrome_util.mm |
+++ b/ios/chrome/test/earl_grey/chrome_util.mm |
@@ -11,6 +11,10 @@ |
#import "ios/testing/wait_util.h" |
#import "ios/web/public/test/earl_grey/web_view_matchers.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace { |
const NSTimeInterval kWaitForToolbarAnimationTimeout = 1.0; |
} // namespace |