[Background fetching] Background fetching when opening an NTP.

chrome/browser/ntp_snippets/content_suggestions_service_factory.cc

Index: chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
diff --git a/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc b/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
index 7bb31372e9c68418c8eb2c17ecf99e777b59a9a4..ea214afa13a469967550ee1ac95bea02534e67b1 100644
--- a/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
+++ b/chrome/browser/ntp_snippets/content_suggestions_service_factory.cc
@@ -193,7 +193,7 @@ void RegisterArticleProvider(SigninManagerBase* signin_manager,
   auto scheduling_provider =
       base::MakeUnique<SchedulingRemoteSuggestionsProvider>(
           service, std::move(provider), scheduler, service->user_classifier(),
-          pref_service);
+          pref_service, base::MakeUnique<base::DefaultClock>());
   service->set_remote_suggestions_provider(scheduling_provider.get());
   service->set_remote_suggestions_scheduler(scheduling_provider.get());
   service->RegisterProvider(std::move(scheduling_provider));