Find Favicon in priority of icon_type.

chrome/browser/history/history_backend.h

 // Copyright (c) 2012 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 CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 231 matching lines @@
                     const std::vector<ui::ScaleFactor>& desired_scale_factors,
                     std::vector<chrome::FaviconBitmapResult>* bitmap_results);
 
   void GetFaviconsForURL(
       const GURL& page_url,
       int icon_types,
       int desired_size_in_dip,
       const std::vector<ui::ScaleFactor>& desired_scale_factors,
       std::vector<chrome::FaviconBitmapResult>* bitmap_results);
 
+  void GetLargestFaviconForURL(
+      const GURL& page_url,
+      const std::vector<int>& icon_types,
+      int minimal_size_in_pixel,
+      std::vector<chrome::FaviconBitmapResult>* bitmap_results);
+
   void GetFaviconForID(
       chrome::FaviconID favicon_id,
       int desired_size_in_dip,
       ui::ScaleFactor desired_scale_factor,
       std::vector<chrome::FaviconBitmapResult>* bitmap_results);
 
   void UpdateFaviconMappingsAndFetch(
       const GURL& page_url,
       const std::vector<GURL>& icon_urls,
       int icon_types,
@@ skipping 646 matching lines @@
 
   // Listens for the system being under memory pressure.
   scoped_ptr<base::MemoryPressureListener> memory_pressure_listener_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_