Convert SupervisedUserResourceThrottle to a NavigationThrottle.

chrome/browser/search/search_unittest.cc

Index: chrome/browser/search/search_unittest.cc
diff --git a/chrome/browser/search/search_unittest.cc b/chrome/browser/search/search_unittest.cc
index dd04bc05bbd4366e54636ff1b9270eb9111ea677..a99098d27fa91ca5953d95b91d1600c5baadcccc 100644
--- a/chrome/browser/search/search_unittest.cc
+++ b/chrome/browser/search/search_unittest.cc
@@ -438,11 +438,10 @@ TEST_F(SearchTest, UseLocalNTPIfNTPURLIsBlockedForSupervisedUser) {
   // Block access to foo.com in the URL filter.
   SupervisedUserService* supervised_user_service =
       SupervisedUserServiceFactory::GetForProfile(profile());
-  SupervisedUserURLFilter* url_filter =
-      supervised_user_service->GetURLFilterForUIThread();
+  SupervisedUserURLFilter* url_filter = supervised_user_service->GetURLFilter();
   std::map<std::string, bool> hosts;
   hosts["foo.com"] = false;
-  url_filter->SetManualHosts(&hosts);
+  url_filter->SetManualHosts(std::move(hosts));
 
   EXPECT_EQ(GURL(chrome::kChromeSearchLocalNtpUrl),
             GetNewTabPageURL(profile()));