Measure usage metrics to prepare for adaptive fetching rates in M55

ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc

Index: ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc
diff --git a/ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc b/ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc
index 4ce446eff482d7fb29561b07ffa3d8dbb04b39c1..985c81a9a49e93338bca7868e24051adc57940c6 100644
--- a/ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc
+++ b/ios/chrome/browser/ntp_snippets/ios_chrome_content_suggestions_service_factory.cc
@@ -121,7 +121,8 @@ IOSChromeContentSuggestionsServiceFactory::BuildServiceInstanceFor(
       ios::HistoryServiceFactory::GetForBrowserState(
           chrome_browser_state, ServiceAccessType::EXPLICIT_ACCESS);
   std::unique_ptr<ContentSuggestionsService> service =
-      base::MakeUnique<ContentSuggestionsService>(state, history_service);
+      base::MakeUnique<ContentSuggestionsService>(state, history_service,
+                                                  prefs);
   if (state == State::DISABLED)
     return std::move(service);