[ObjC ARC] Converts ios/chrome/browser/infobars:infobars to ARC.\n\nAutomatically generated ARCMigr…

ios/chrome/browser/infobars/infobar_utils.mm

Index: ios/chrome/browser/infobars/infobar_utils.mm
diff --git a/ios/chrome/browser/infobars/infobar_utils.mm b/ios/chrome/browser/infobars/infobar_utils.mm
index 37ad255a83cc4d155e27ffc7e36707c71666a0ad..46fc48e7e64a4cf868bc461bf12172a11df15d54 100644
--- a/ios/chrome/browser/infobars/infobar_utils.mm
+++ b/ios/chrome/browser/infobars/infobar_utils.mm
@@ -7,16 +7,19 @@
 #include <memory>
 #include <utility>
 
-#include "base/mac/scoped_nsobject.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "ios/chrome/browser/infobars/confirm_infobar_controller.h"
 #include "ios/chrome/browser/infobars/infobar.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 std::unique_ptr<infobars::InfoBar> CreateConfirmInfoBar(
     std::unique_ptr<ConfirmInfoBarDelegate> delegate) {
   std::unique_ptr<InfoBarIOS> infobar(new InfoBarIOS(std::move(delegate)));
-  base::scoped_nsobject<ConfirmInfoBarController> controller(
-      [[ConfirmInfoBarController alloc] initWithDelegate:infobar.get()]);
+  ConfirmInfoBarController* controller =
+      [[ConfirmInfoBarController alloc] initWithDelegate:infobar.get()];
   infobar->SetController(controller);
   return std::move(infobar);
 }