NTP: Fix "Undo" option of the "Item removed" snackbar

chrome/browser/android/most_visited_sites.cc

Index: chrome/browser/android/most_visited_sites.cc
diff --git a/chrome/browser/android/most_visited_sites.cc b/chrome/browser/android/most_visited_sites.cc
index a41f6c83c7c456fd3c7d41653259aa6e1a236c4f..ee6b29c75c560f8ca7aee77776bfd09ccf3d3a50 100644
--- a/chrome/browser/android/most_visited_sites.cc
+++ b/chrome/browser/android/most_visited_sites.cc
@@ -635,7 +635,10 @@ void MostVisitedSites::SaveNewNTPSuggestions(
                             popular_sites_suggestions.size();
   std::vector<std::string> old_sites_url;
   std::vector<bool> old_sites_is_personal;
-  GetPreviousNTPSites(num_actual_tiles, &old_sites_url, &old_sites_is_personal);
+  // TODO(treib): We used to call |GetPreviousNTPSites| here to populate
+  // |old_sites_url| and |old_sites_is_personal|, but that caused problems
+  // (crbug.com/585391). Either figure out a way to fix them and re-enable,
+  // or properly remove the order-persisting code. crbug.com/601734
   MostVisitedSites::SuggestionsVector merged_suggestions = MergeSuggestions(
       personal_suggestions, &whitelist_suggestions, &popular_sites_suggestions,
       old_sites_url, old_sites_is_personal);