[ObjC ARC] Converts ios/chrome/browser/native_app_launcher:unit_tests to ARC.Automatically genera…

ios/chrome/browser/native_app_launcher/native_app_infobar_delegate_unittest.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/native_app_launcher/native_app_infobar_delegate.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #import "ios/public/provider/chrome/browser/native_app_launcher/native_app_types.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace {
 
 class NativeAppInfoBarDelegateTest : public PlatformTest {};
 
 TEST_F(NativeAppInfoBarDelegateTest, TestIdentifiers) {
   std::unique_ptr<NativeAppInfoBarDelegate> delegate;
 
   delegate = base::MakeUnique<NativeAppInfoBarDelegate>(
       nil, GURL(), NATIVE_APP_INSTALLER_CONTROLLER);
   EXPECT_EQ(infobars::InfoBarDelegate::InfoBarIdentifier::
                 NATIVE_APP_INSTALLER_INFOBAR_DELEGATE,
             delegate->GetIdentifier());
 
   delegate = base::MakeUnique<NativeAppInfoBarDelegate>(
       nil, GURL(), NATIVE_APP_LAUNCHER_CONTROLLER);
   EXPECT_EQ(infobars::InfoBarDelegate::InfoBarIdentifier::
                 NATIVE_APP_LAUNCHER_INFOBAR_DELEGATE,
             delegate->GetIdentifier());
 
   delegate = base::MakeUnique<NativeAppInfoBarDelegate>(
       nil, GURL(), NATIVE_APP_OPEN_POLICY_CONTROLLER);
   EXPECT_EQ(infobars::InfoBarDelegate::InfoBarIdentifier::
                 NATIVE_APP_OPEN_POLICY_INFOBAR_DELEGATE,
             delegate->GetIdentifier());
 }
 
 }  // namespace