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

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

Index: ios/chrome/browser/ui/alert_coordinator/alert_coordinator_unittest.mm
diff --git a/ios/chrome/browser/ui/alert_coordinator/alert_coordinator_unittest.mm b/ios/chrome/browser/ui/alert_coordinator/alert_coordinator_unittest.mm
index 8933d79e3f8dd9d35027fe1d4d1605b39fb97bf2..ba8ad718d6db0397b0f208b5d5917c4317a0f85e 100644
--- a/ios/chrome/browser/ui/alert_coordinator/alert_coordinator_unittest.mm
+++ b/ios/chrome/browser/ui/alert_coordinator/alert_coordinator_unittest.mm
@@ -7,23 +7,25 @@
 #import <UIKit/UIKit.h>
 
 #import "base/mac/foundation_util.h"
-#import "base/mac/scoped_nsobject.h"
 #include "testing/platform_test.h"
 #import "third_party/ocmock/OCMock/OCMock.h"
 #include "third_party/ocmock/gtest_support.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/strings/grit/ui_strings.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 #pragma mark - Fixture.
 
 // Fixture to test AlertCoordinator.
 class AlertCoordinatorTest : public PlatformTest {
  protected:
   AlertCoordinatorTest() {
-    window_.reset(
-        [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]);
+    window_ = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
     [window_ makeKeyAndVisible];
-    view_controller_.reset([[UIViewController alloc] init]);
+    view_controller_ = [[UIViewController alloc] init];
     [window_ setRootViewController:view_controller_];
   }
 
@@ -38,17 +40,17 @@ class AlertCoordinatorTest : public PlatformTest {
   AlertCoordinator* getAlertCoordinator(UIViewController* viewController,
                                         NSString* title,
                                         NSString* message) {
-    alert_coordinator_.reset([[AlertCoordinator alloc]
-        initWithBaseViewController:viewController
-                             title:title
-                           message:message]);
+    alert_coordinator_ =
+        [[AlertCoordinator alloc] initWithBaseViewController:viewController
+                                                       title:title
+                                                     message:message];
     return alert_coordinator_;
   }
 
  private:
-  base::scoped_nsobject<AlertCoordinator> alert_coordinator_;
-  base::scoped_nsobject<UIWindow> window_;
-  base::scoped_nsobject<UIViewController> view_controller_;
+  AlertCoordinator* alert_coordinator_;
+  UIWindow* window_;
+  UIViewController* view_controller_;
 };
 
 #pragma mark - Tests.
@@ -80,10 +82,9 @@ TEST_F(AlertCoordinatorTest, ValidateIsVisible) {
 // visible view.
 TEST_F(AlertCoordinatorTest, ValidateIsNotVisible) {
   // Setup.
-  base::scoped_nsobject<UIWindow> window(
-      [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]);
-  base::scoped_nsobject<UIViewController> viewController(
-      [[UIViewController alloc] init]);
+  UIWindow* window =
+      [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
+  UIViewController* viewController = [[UIViewController alloc] init];
   [window setRootViewController:viewController];
 
   AlertCoordinator* alertCoordinator = getAlertCoordinator(viewController);
@@ -161,8 +162,7 @@ TEST_F(AlertCoordinatorTest, ValidateActions) {
     @"testCancel" : @(UIAlertActionStyleCancel),
   };
 
-  base::scoped_nsobject<NSMutableDictionary> remainingActions(
-      [actions mutableCopy]);
+  NSMutableDictionary* remainingActions = [actions mutableCopy];
 
   // Action.
   for (id key in actions) {