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 ca75d4c77cd7a01006ebc850b30225b43ca05d70..64592cb00febd1252fe4c1e26dc6f2978595d6a4 100644
--- a/components/ntp_tiles/most_visited_sites.cc
+++ b/components/ntp_tiles/most_visited_sites.cc
@@ -420,8 +420,12 @@ void MostVisitedSites::OnPopularSitesDownloaded(bool success) {
     return;
   }
 
-  // Re-build the tile list. Once done, this will notify the observer.
-  BuildCurrentTiles();
+  // Only build the tiles if there haven't been any. Otherwise, the UI should
+  // not flicker.
+  if (current_tiles_.empty()) {

[sfiera, 2017/02/09 12:39:06]

Can this actually happen? For a new user, we should already have been able to
come up with eight tiles.

[fhorschig, 2017/02/09 15:30:18]

Removed completely. 

+    // Re-build the tile list. Once done, this will notify the observer.
+    BuildCurrentTiles();
+  }
 }
 
 void MostVisitedSites::OnIconMadeAvailable(const GURL& site_url,