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

ios/chrome/browser/ui/authentication/signin_interaction_controller_egtest.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 <EarlGrey/EarlGrey.h>
 #import <XCTest/XCTest.h>
 
 #include "base/strings/sys_string_conversions.h"
 #import "base/test/ios/wait_util.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "ios/chrome/browser/experimental_flags.h"
 #include "ios/chrome/browser/signin/signin_manager_factory.h"
 #import "ios/chrome/browser/ui/commands/open_url_command.h"
 #import "ios/chrome/browser/ui/settings/accounts_collection_view_controller.h"
 #import "ios/chrome/browser/ui/settings/import_data_collection_view_controller.h"
 #import "ios/chrome/browser/ui/settings/settings_collection_view_controller.h"
 #import "ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.h"
 #import "ios/chrome/browser/ui/tools_menu/tools_popup_controller.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/chrome/test/app/chrome_test_util.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/chrome/test/earl_grey/chrome_test_case.h"
 #import "ios/public/provider/chrome/browser/signin/fake_chrome_identity.h"
 #import "ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h"
 #import "ios/testing/earl_grey/disabled_test_macros.h"
 #import "ios/testing/wait_util.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace {
 
 // Returns a fake identity.
 ChromeIdentity* GetFakeIdentity1() {
   return [FakeChromeIdentity identityWithEmail:@"foo@gmail.com"
                                         gaiaID:@"fooID"
                                           name:@"Fake Foo"];
 }
 
 // Returns a second fake identity.
@@ skipping 359 matching lines @@
 - (void)testSignInCancelIdentityPicker {
   // Add an identity to avoid arriving on the Add Account screen when opening
   // sign-in.
   ChromeIdentity* identity = GetFakeIdentity1();
   ios::FakeChromeIdentityService::GetInstanceFromChromeProvider()->AddIdentity(
       identity);
 
   OpenSignInFromSettings();
 
   // Open new tab to cancel sign-in.
-  base::scoped_nsobject<OpenUrlCommand> command(
-      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
+  OpenUrlCommand* command =
+      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")];
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
       chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
@@ skipping 16 matching lines @@
 
   // Open Add Account screen.
   id<GREYMatcher> add_account_matcher =
       chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_ADD_ACCOUNT_BUTTON);
   [[EarlGrey selectElementWithMatcher:add_account_matcher]
       performAction:grey_tap()];
   [[GREYUIThreadExecutor sharedInstance] drainUntilIdle];
 
   // Open new tab to cancel sign-in.
-  base::scoped_nsobject<OpenUrlCommand> command(
-      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
+  OpenUrlCommand* command =
+      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")];
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
       chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
@@ skipping 37 matching lines @@
   TapButtonWithLabelId(IDS_IOS_DISCONNECT_DIALOG_CONTINUE_BUTTON_MOBILE);
   AssertAuthenticatedIdentityInActiveProfile(nil);
 
   // Start sign-in with |identity1|.
   WaitForMatcher(grey_accessibilityID(kSettingsSignInCellId));
   TapViewWithAccessibilityId(kSettingsSignInCellId);
   TapButtonWithAccessibilityLabel(identity1.userEmail);
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SIGNIN_BUTTON);
 
   // Open new tab to cancel sign-in.
-  base::scoped_nsobject<OpenUrlCommand> command(
-      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
+  OpenUrlCommand* command =
+      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")];
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
       chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
@@ skipping 39 matching lines @@
   TapButtonWithLabelId(IDS_IOS_BOOKMARK_PROMO_SIGN_IN_BUTTON);
 
   // Assert sign-in screen was shown.
   id<GREYMatcher> signin_matcher =
       chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Open new tab to cancel sign-in.
-  base::scoped_nsobject<OpenUrlCommand> command(
-      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
+  OpenUrlCommand* command =
+      [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")];
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   [ChromeEarlGreyUI openToolsMenu];
   [[[EarlGrey
       selectElementWithMatcher:grey_accessibilityID(kToolsMenuBookmarksId)]
          usingSearchAction:grey_scrollInDirection(kGREYDirectionDown,
                                                   scroll_displacement)
       onElementWithMatcher:grey_accessibilityID(kToolsMenuTableViewId)]
       performAction:grey_tap()];
   if (!IsIPadIdiom()) {
     [[EarlGrey selectElementWithMatcher:grey_accessibilityID(@"Menu")]
         performAction:grey_tap()];
   }
   [[EarlGrey selectElementWithMatcher:all_bookmarks_matcher]
       performAction:grey_tap()];
   TapButtonWithLabelId(IDS_IOS_BOOKMARK_PROMO_SIGN_IN_BUTTON);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Bookmarks.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   if (!IsIPadIdiom()) {
     TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
   }
 }
 
 @end