[ObjC ARC] Converts ios/chrome/browser/ui/authentication:unit_tests to ARC.

ios/chrome/browser/ui/authentication/re_signin_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.
 
 #include "ios/chrome/browser/ui/authentication/re_signin_infobar_delegate.h"
 
 #include <memory>
 
-#include "base/mac/objc_property_releaser.h"
-#include "base/mac/scoped_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "ios/chrome/browser/browser_state/test_chrome_browser_state.h"
 #include "ios/chrome/browser/infobars/confirm_infobar_controller.h"
 #include "ios/chrome/browser/infobars/infobar.h"
 #include "ios/chrome/browser/infobars/infobar_utils.h"
 #include "ios/chrome/browser/signin/authentication_service.h"
 #include "ios/chrome/browser/signin/authentication_service_factory.h"
 #include "ios/chrome/browser/signin/authentication_service_fake.h"
 #include "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
 #import "ios/chrome/browser/ui/commands/show_signin_command.h"
 #include "ios/public/provider/chrome/browser/signin/fake_chrome_identity.h"
 #include "ios/web/public/test/test_web_thread_bundle.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 // View that intercepts and stores chrome commands sent up the responder chain.
 @interface CatchExecuteCommandView : UIView {
-  base::mac::ObjCPropertyReleaser propertyReleaser_CatchExecuteCommandView_;
 }
 // Command sent up the responder chain and intercepted by this view.
-@property(nonatomic, retain) id command;
+@property(nonatomic, strong) id command;
 @end
 
 @implementation CatchExecuteCommandView
 
 @synthesize command = _command;
 
 - (instancetype)initWithFrame:(CGRect)frame {
   self = [super initWithFrame:frame];
   if (self) {
-    propertyReleaser_CatchExecuteCommandView_.Init(
-        self, [CatchExecuteCommandView class]);
   }
   return self;
 }
 
 - (void)chromeExecuteCommand:(id)command {
   DCHECK(command);
   DCHECK(!self.command);
   self.command = command;
 }
 
@@ skipping 118 matching lines @@
   SetUpMainChromeBrowserStateNotSignedIn();
   AuthenticationService* authService =
       AuthenticationServiceFactory::GetForBrowserState(
           chrome_browser_state_.get());
   authService->SetPromptForSignIn(true);
   std::unique_ptr<infobars::InfoBar> infobar(
       CreateConfirmInfoBar(ReSignInInfoBarDelegate::CreateInfoBarDelegate(
           chrome_browser_state_.get())));
   InfoBarIOS* infobarIOS = static_cast<InfoBarIOS*>(infobar.get());
   infobarIOS->Layout(CGRectZero);
-  base::scoped_nsobject<CatchExecuteCommandView> view(
-      [[CatchExecuteCommandView alloc] initWithFrame:CGRectZero]);
-  [view.get() addSubview:infobarIOS->view()];
+  CatchExecuteCommandView* view =
+      [[CatchExecuteCommandView alloc] initWithFrame:CGRectZero];
+  [view addSubview:infobarIOS->view()];
 
   ReSignInInfoBarDelegate* delegate =
       static_cast<ReSignInInfoBarDelegate*>(infobarIOS->delegate());
   EXPECT_TRUE(delegate->Accept());
   EXPECT_FALSE(authService->ShouldPromptForSignIn());
   EXPECT_TRUE([view command]);
   EXPECT_TRUE([[view command] isKindOfClass:[ShowSigninCommand class]]);
   EXPECT_EQ(AUTHENTICATION_OPERATION_REAUTHENTICATE,
             static_cast<ShowSigninCommand*>([view command]).operation);
 }
 
 TEST_F(ReSignInInfoBarDelegateTest, TestInfoBarDismissed) {
   SetUpMainChromeBrowserStateNotSignedIn();
   AuthenticationService* authService =
       AuthenticationServiceFactory::GetForBrowserState(
           chrome_browser_state_.get());
   authService->SetPromptForSignIn(true);
   std::unique_ptr<infobars::InfoBar> infobar(
       CreateConfirmInfoBar(ReSignInInfoBarDelegate::CreateInfoBarDelegate(
           chrome_browser_state_.get())));
   InfoBarIOS* infobarIOS = static_cast<InfoBarIOS*>(infobar.get());
   infobarIOS->Layout(CGRectZero);
-  base::scoped_nsobject<CatchExecuteCommandView> view(
-      [[CatchExecuteCommandView alloc] initWithFrame:CGRectZero]);
-  [view.get() addSubview:infobarIOS->view()];
+  CatchExecuteCommandView* view =
+      [[CatchExecuteCommandView alloc] initWithFrame:CGRectZero];
+  [view addSubview:infobarIOS->view()];
 
   ReSignInInfoBarDelegate* delegate =
       static_cast<ReSignInInfoBarDelegate*>(infobarIOS->delegate());
   delegate->InfoBarDismissed();
   EXPECT_FALSE(authService->ShouldPromptForSignIn());
   EXPECT_FALSE([view command]);
 }
 
 }  // namespace