Add baked-in favicons for default popular sites on NTP

components/ntp_tiles/most_visited_sites.cc

 // Copyright 2013 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 "components/ntp_tiles/most_visited_sites.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 402 matching lines @@
   observer_->OnMostVisitedURLsAvailable(current_tiles_);
 }
 
 void MostVisitedSites::OnPopularSitesDownloaded(bool success) {
   if (!success) {
     LOG(WARNING) << "Download of popular sites failed";
     return;
   }
 }
 
-void MostVisitedSites::OnIconMadeAvailable(const GURL& site_url,
-                                           bool newly_available) {
-  if (newly_available)
-    observer_->OnIconMadeAvailable(site_url);
+void MostVisitedSites::OnIconMadeAvailable(const GURL& site_url) {
+  observer_->OnIconMadeAvailable(site_url);
 }
 
 void MostVisitedSites::TopSitesLoaded(TopSites* top_sites) {}
 
 void MostVisitedSites::TopSitesChanged(TopSites* top_sites,
                                        ChangeReason change_reason) {
   if (mv_source_ == NTPTileSource::TOP_SITES) {
     // The displayed tiles are invalidated.
     InitiateTopSitesQuery();
   }
 }
 
 }  // namespace ntp_tiles