Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/ui/webui/ntp/most_visited_handler.cc

 // Copyright (c) 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/ui/webui/ntp/most_visited_handler.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 239 matching lines @@
   if (ts)
     ts->AddBlacklistedURL(url);
   content::RecordAction(UserMetricsAction("MostVisited_UrlBlacklisted"));
 }
 
 std::string MostVisitedHandler::GetDictionaryKeyForUrl(const std::string& url) {
   return base::MD5String(url);
 }
 
 // static
-void MostVisitedHandler::RegisterUserPrefs(PrefService* prefs) {
+void MostVisitedHandler::RegisterUserPrefs(PrefServiceSyncable* prefs) {
   prefs->RegisterDictionaryPref(prefs::kNtpMostVisitedURLsBlacklist,
-                                PrefService::UNSYNCABLE_PREF);
+                                PrefServiceSyncable::UNSYNCABLE_PREF);
 }