Removes usage of signin APIs that return scoped_nsobjects.

ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm

 // Copyright 2015 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/settings/accounts_collection_view_controller.h"
 
 #import "base/mac/foundation_util.h"
 #include "base/metrics/user_metrics.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 429 matching lines @@
 }
 
 - (void)showGoogleActivitySettings {
   if ([_alertCoordinator isVisible])
     return;
   base::RecordAction(base::UserMetricsAction(
       "Signin_AccountSettings_GoogleActivityControlsClicked"));
   UINavigationController* settingsDetails =
       ios::GetChromeBrowserProvider()
           ->GetChromeIdentityService()
-          ->NewWebAndAppSettingDetails(
+          ->CreateWebAndAppSettingDetailsController(
               [self authService]->GetAuthenticatedIdentity(), self);
   UIImage* closeIcon = [ChromeIcon closeIcon];
   SEL action = @selector(closeGoogleActivitySettings:);
   [settingsDetails.topViewController navigationItem].leftBarButtonItem =
       [ChromeIcon templateBarButtonItemWithImage:closeIcon
                                           target:self
                                           action:action];
   [self presentViewController:settingsDetails animated:YES completion:nil];
 
   // Keep a weak reference on the settings details, to be able to dismiss it
@@ skipping 41 matching lines @@
   if (success && _closeSettingsOnAddAccount) {
     GenericChromeCommand* closeSettingsCommand =
         [[GenericChromeCommand alloc] initWithTag:IDC_CLOSE_SETTINGS];
     [self chromeExecuteCommand:closeSettingsCommand];
   }
 }
 
 - (void)showAccountDetails:(ChromeIdentity*)identity {
   if ([_alertCoordinator isVisible])
     return;
-  UIViewController* accountDetails = ios::GetChromeBrowserProvider()
-                                         ->GetChromeIdentityService()
-                                         ->NewAccountDetails(identity, self);
+  UIViewController* accountDetails =
+      ios::GetChromeBrowserProvider()
+          ->GetChromeIdentityService()
+          ->CreateAccountDetailsController(identity, self);
   if (!accountDetails) {
     // Failed to create a new account details. Ignored.
     return;
   }
   [self presentViewController:accountDetails animated:YES completion:nil];
 
   // Keep a weak reference on the account details, to be able to dismiss it
   // when the primary account is removed.
   _settingsDetails = accountDetails;
 }
@@ skipping 128 matching lines @@
   [self updateAccountItem:item withIdentity:identity];
   NSIndexPath* indexPath = [self.collectionViewModel indexPathForItem:item];
   [self.collectionView reloadItemsAtIndexPaths:@[ indexPath ]];
 }
 
 - (void)onChromeIdentityServiceWillBeDestroyed {
   _identityServiceObserver.reset();
 }
 
 @end