provide static popular sites for first run

components/ntp_tiles/most_visited_sites.cc

Index: components/ntp_tiles/most_visited_sites.cc
diff --git a/components/ntp_tiles/most_visited_sites.cc b/components/ntp_tiles/most_visited_sites.cc
index 6df20e31c89d74107da78ad0a2a868b7dd370476..f3695c9946ec90bfe44a7e89456e6e539e820fd9 100644
--- a/components/ntp_tiles/most_visited_sites.cc
+++ b/components/ntp_tiles/most_visited_sites.cc
@@ -337,7 +337,8 @@ NTPTilesVector MostVisitedSites::CreatePopularSitesTiles(
   size_t num_popular_sites_tiles = num_sites_ - num_tiles;
   NTPTilesVector popular_sites_tiles;
 
-  if (num_popular_sites_tiles > 0 && popular_sites_) {
+  if (num_popular_sites_tiles > 0 && popular_sites_ &&
+      ShouldShowPopularSites()) {
     std::set<std::string> hosts;
     for (const auto& tile : personal_tiles)
       hosts.insert(tile.url.host());
@@ -417,9 +418,6 @@ void MostVisitedSites::OnPopularSitesDownloaded(bool success) {
     LOG(WARNING) << "Download of popular sites failed";
     return;
   }
-
-  // Re-build the tile list. Once done, this will notify the observer.
-  BuildCurrentTiles();
 }
 
 void MostVisitedSites::OnIconMadeAvailable(const GURL& site_url,