Refactor preference syncing.

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

 // Copyright (c) 2011 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/callback.h"
 #include "base/command_line.h"
@@ skipping 350 matching lines @@
   if (ts)
     ts->AddBlacklistedURL(url);
 }
 
 std::string MostVisitedHandler::GetDictionaryKeyForURL(const std::string& url) {
   return MD5String(url);
 }
 
 // static
 void MostVisitedHandler::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterDictionaryPref(prefs::kNTPMostVisitedURLsBlacklist);
-  prefs->RegisterDictionaryPref(prefs::kNTPMostVisitedPinnedURLs);
+  prefs->RegisterDictionaryPref(prefs::kNTPMostVisitedURLsBlacklist,
+                                PrefService::UNSYNCABLE_PREF);
+  prefs->RegisterDictionaryPref(prefs::kNTPMostVisitedPinnedURLs,
+                                PrefService::UNSYNCABLE_PREF);
 }
 
 // static
 std::vector<GURL> MostVisitedHandler::GetPrePopulatedUrls() {
   const std::vector<MostVisitedPage> pages =
       MostVisitedHandler::GetPrePopulatedPages();
   std::vector<GURL> page_urls;
   for (size_t i = 0; i < pages.size(); ++i)
     page_urls.push_back(pages[i].url);
   return page_urls;
 }