Remove preferences among favicon types when choosing large icons

components/favicon/core/large_icon_service.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_FAVICON_CORE_LARGE_ICON_SERVICE_H_
 #define COMPONENTS_FAVICON_CORE_LARGE_ICON_SERVICE_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 79 matching lines @@
       const GURL& page_url,
       int min_source_size_in_pixel,
       int desired_size_in_pixel,
       const favicon_base::LargeIconCallback& raw_bitmap_callback,
       const favicon_base::LargeIconImageCallback& image_callback,
       base::CancelableTaskTracker* tracker);
 
   FaviconService* favicon_service_;
   scoped_refptr<base::TaskRunner> background_task_runner_;
 
-  // A pre-populated list of icon types to consider when looking for large
-  // icons. This is an optimization over populating an icon type vector on each
-  // request.
-  std::vector<int> large_icon_types_;
-
   std::unique_ptr<image_fetcher::ImageFetcher> image_fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(LargeIconService);
 };
 
 }  // namespace favicon
 
 #endif  // COMPONENTS_FAVICON_CORE_LARGE_ICON_SERVICE_H_