[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

Index: ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
diff --git a/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm b/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
index ee05e1d5d788d8a10263f74eac3fd237853f30c3..83eb94eeaf6ffc3dc24041df4e491b3f963338c7 100644
--- a/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
+++ b/ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator_unittest.mm
@@ -9,27 +9,29 @@
 #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];