[ObjC ARC] Converts ios/chrome/browser/ui/alert_coordinator:unit_tests to ARC.Automatically gener…

ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm

 // Copyright 2016 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/ui/alert_coordinator/action_sheet_coordinator.h"
 
 #import <UIKit/UIKit.h>
 
 #import "base/mac/foundation_util.h"
 #include "testing/platform_test.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 // Tests that if there is a popover, it uses the CGRect passed in init.
 TEST(ActionSheetCoordinatorTest, CGRectUsage) {
   // Setup.
-  UIWindow* window = [[[UIWindow alloc]
-      initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
+  UIWindow* window =
+      [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
   [window makeKeyAndVisible];
-  UIViewController* viewController =
-      [[[UIViewController alloc] init] autorelease];
+  UIViewController* viewController = [[UIViewController alloc] init];
   [window setRootViewController:viewController];
 
-  UIView* view =
-      [[[UIView alloc] initWithFrame:viewController.view.bounds] autorelease];
+  UIView* view = [[UIView alloc] initWithFrame:viewController.view.bounds];
 
   [viewController.view addSubview:view];
   CGRect rect = CGRectMake(124, 432, 126, 63);
-  AlertCoordinator* alertCoordinator = [[[ActionSheetCoordinator alloc]
-      initWithBaseViewController:viewController
-                           title:@"title"
-                         message:nil
-                            rect:rect
-                            view:view] autorelease];
+  AlertCoordinator* alertCoordinator =
+      [[ActionSheetCoordinator alloc] initWithBaseViewController:viewController
+                                                           title:@"title"
+                                                         message:nil
+                                                            rect:rect
+                                                            view:view];
 
   // Action.
   [alertCoordinator start];
 
   // Test.
   // Get the alert.
   EXPECT_TRUE([viewController.presentedViewController
       isKindOfClass:[UIAlertController class]]);
   UIAlertController* alertController =
       base::mac::ObjCCastStrict<UIAlertController>(
           viewController.presentedViewController);
 
   // Test the results.
   EXPECT_EQ(UIAlertControllerStyleActionSheet, alertController.preferredStyle);
 
   if (alertController.popoverPresentationController) {
     UIPopoverPresentationController* popover =
         alertController.popoverPresentationController;
     EXPECT_TRUE(CGRectEqualToRect(rect, popover.sourceRect));
     EXPECT_EQ(view, popover.sourceView);
   }
 
   [alertCoordinator stop];
 }