| Index: chrome/browser/history/top_sites_factory.cc
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| diff --git a/chrome/browser/history/top_sites_factory.cc b/chrome/browser/history/top_sites_factory.cc
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| index 0c56d8c88dbc06b484b32a1dd1d2e834232df0a3..114d9c913c2f62e4d6c8ecec7cc3c68fb23279b8 100644
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| --- a/chrome/browser/history/top_sites_factory.cc
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| +++ b/chrome/browser/history/top_sites_factory.cc
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| @@ -17,6 +17,7 @@
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|  #include "components/history/core/browser/history_constants.h"
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|  #include "components/history/core/browser/top_sites_impl.h"
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|  #include "components/keyed_service/content/browser_context_dependency_manager.h"
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| +#include "components/pref_registry/pref_registry_syncable.h"
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|  #include "content/public/browser/browser_thread.h"
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|  #include "grit/theme_resources.h"
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|  #include "ui/base/l10n/l10n_util.h"
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| @@ -115,6 +116,11 @@ scoped_refptr<RefcountedKeyedService> TopSitesFactory::BuildServiceInstanceFor(
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|    return BuildTopSites(context, prepopulated_pages);
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|  }
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|  
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| +void TopSitesFactory::RegisterProfilePrefs(
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| +    user_prefs::PrefRegistrySyncable* registry) {
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| +  registry->RegisterDictionaryPref(prefs::kNtpMostVisitedURLsBlacklist);
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| +}
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| +
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|  bool TopSitesFactory::ServiceIsNULLWhileTesting() const {
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|    return true;
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|  }
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| 
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