Convert SupervisedUserResourceThrottle to a NavigationThrottle.

chrome/browser/search/search.cc

 // Copyright 2012 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 "chrome/browser/search/search.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
@@ skipping 144 matching lines @@
   if (!instant_url.is_valid())
     return false;
 
   return MatchesOriginAndPath(url, instant_url);
 }
 
 bool IsURLAllowedForSupervisedUser(const GURL& url, Profile* profile) {
 #if BUILDFLAG(ENABLE_SUPERVISED_USERS)
   SupervisedUserService* supervised_user_service =
       SupervisedUserServiceFactory::GetForProfile(profile);
-  SupervisedUserURLFilter* url_filter =
-      supervised_user_service->GetURLFilterForUIThread();
+  SupervisedUserURLFilter* url_filter = supervised_user_service->GetURLFilter();
   if (url_filter->GetFilteringBehaviorForURL(url) ==
           SupervisedUserURLFilter::BLOCK) {
     return false;
   }
 #endif
   return true;
 }
 
 // Returns whether |new_tab_url| can be used as a URL for the New Tab page.
 // NEW_TAB_URL_VALID means a valid URL; other enum values imply an invalid URL.
@@ skipping 282 matching lines @@
 
   if (IsInstantNTPURL(*url, profile)) {
     *url = GURL(chrome::kChromeUINewTabURL);
     return true;
   }
 
   return false;
 }
 
 }  // namespace search