Import Objective C Frameworks

ios/chrome/browser/signin/authentication_service.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.
 
 #import "ios/chrome/browser/signin/authentication_service.h"
 
-#include <UIKit/UIKit.h>
+#import <UIKit/UIKit.h>
 
 #include "base/auto_reset.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "components/browser_sync/profile_sync_service.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/pref_service.h"
@@ skipping 589 matching lines @@
     // integration is enabled.
     return false;
   }
   std::string hosted_domain =
       ios::SigninManagerFactory::GetForBrowserState(browser_state_)
           ->GetAuthenticatedAccountInfo()
           .hosted_domain;
   return !hosted_domain.empty() &&
          hosted_domain != AccountTrackerService::kNoHostedDomainFound;
 }