Always select best favicon bitmap

components/favicon_base/select_favicon_frames.cc

 // Copyright 2014 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/favicon_base/select_favicon_frames.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <map>
@@ skipping 247 matching lines @@
 }
 
 void SelectFaviconFrameIndices(const std::vector<gfx::Size>& frame_pixel_sizes,
                                const std::vector<int>& desired_sizes,
                                std::vector<size_t>* best_indices,
                                float* match_score) {
   std::vector<SelectionResult> results;
   GetCandidateIndicesWithBestScores(
       frame_pixel_sizes, desired_sizes, match_score, &results);
 
+  if (!best_indices)
+    return;
+
   std::set<size_t> already_added;
   for (size_t i = 0; i < results.size(); ++i) {
     size_t index = results[i].index;
     // GetCandidateIndicesWithBestScores() will return duplicate indices if the
     // bitmap data with |frame_pixel_sizes[index]| should be used for multiple
     // scale factors. Remove duplicates here such that |best_indices| contains
     // no duplicates.
     if (already_added.find(index) == already_added.end()) {
       already_added.insert(index);
       best_indices->push_back(index);
     }
   }
 }