NTP Zombie Code Slayer Part IV: Most Visited

chrome/browser/history/top_sites_factory.cc

 // Copyright 2015 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/history/top_sites_factory.h"
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/history_utils.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/locale_settings.h"
 #include "components/history/core/browser/history_constants.h"
 #include "components/history/core/browser/top_sites_impl.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "components/pref_registry/pref_registry_syncable.h"
 #include "content/public/browser/browser_thread.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
 namespace {
 
 struct RawPrepopulatedPage {
   int url_id;        // The resource for the page URL.
   int title_id;      // The resource for the page title.
@@ skipping 53 matching lines @@
 }
 
 // static
 scoped_refptr<history::TopSites> TopSitesFactory::BuildTopSites(
     content::BrowserContext* context,
     const std::vector<history::PrepopulatedPage>& prepopulated_page_list) {
   Profile* profile = Profile::FromBrowserContext(context);
   scoped_refptr<history::TopSitesImpl> top_sites(new history::TopSitesImpl(
       profile->GetPrefs(), HistoryServiceFactory::GetForProfile(
                                profile, ServiceAccessType::EXPLICIT_ACCESS),
       prefs::kNtpMostVisitedURLsBlacklist, prepopulated_page_list,

[Dan Beam, 2015/05/19 21:51:31]

this is the only class that needs to know how blacklisting works

       base::Bind(CanAddURLToHistory)));
   top_sites->Init(context->GetPath().Append(history::kTopSitesFilename),
                   content::BrowserThread::GetMessageLoopProxyForThread(
                       content::BrowserThread::DB));
   return top_sites;
 }
 
 TopSitesFactory::TopSitesFactory()
     : RefcountedBrowserContextKeyedServiceFactory(
           "TopSites",
           BrowserContextDependencyManager::GetInstance()) {
   DependsOn(HistoryServiceFactory::GetInstance());
 }
 
 TopSitesFactory::~TopSitesFactory() {
 }
 
 scoped_refptr<RefcountedKeyedService> TopSitesFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   history::PrepopulatedPageList prepopulated_pages;
   InitializePrepopulatedPageList(&prepopulated_pages);
   return BuildTopSites(context, prepopulated_pages);
 }
 
+void TopSitesFactory::RegisterProfilePrefs(
+    user_prefs::PrefRegistrySyncable* registry) {
+  registry->RegisterDictionaryPref(prefs::kNtpMostVisitedURLsBlacklist);
+}
+
 bool TopSitesFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }