Give SelectFaviconFrames a quality score.

chrome/browser/favicon/favicon_handler.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_FAVICON_FAVICON_HANDLER_H_
 #define CHROME_BROWSER_FAVICON_FAVICON_HANDLER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 97 matching lines @@
   void OnUpdateFaviconURL(int32 page_id,
                           const std::vector<FaviconURL>& candidates);
 
   // Processes the current image_irls_ entry, requesting the image from the
   // history / download service.
   void ProcessCurrentUrl();
 
   void OnDidDownloadFavicon(int id,
                             const GURL& image_url,
                             bool errored,
-                            const gfx::Image& image);
+                            const gfx::Image& image,
+                            float score);
 
   // For testing.
   const std::deque<FaviconURL>& image_urls() const { return image_urls_; }
 
  protected:
   // These virtual methods make FaviconHandler testable and are overridden by
   // TestFaviconHandler.
 
   // Return the NavigationEntry for the active entry, or NULL if the active
   // entries URL does not match that of the URL last passed to FetchFavicon.
@@ skipping 50 matching lines @@
     history::IconType icon_type;
   };
 
   struct FaviconCandidate {
     FaviconCandidate();
     ~FaviconCandidate();
 
     FaviconCandidate(const GURL& url,
                      const GURL& image_url,
                      const gfx::Image& image,
-                     int bitmap_size,
+                     float score,
                      history::IconType icon_type);
 
     GURL url;
     GURL image_url;
     gfx::Image image;
-    int bitmap_size;
+    float score;
     history::IconType icon_type;
   };
 
   // See description above class for details.
   void OnFaviconDataForInitialURL(FaviconService::Handle handle,
                                   history::FaviconData favicon);
 
   // If the favicon has expired, asks the renderer to download the favicon.
   // Otherwise asks history to update the mapping between page url and icon
   // url with a callback to OnFaviconData when done.
@@ skipping 10 matching lines @@
   int ScheduleDownload(const GURL& url,
                        const GURL& image_url,
                        int image_size,
                        history::IconType icon_type,
                        const FaviconTabHelper::ImageDownloadCallback& callback);
 
   // Updates |favicon_candidate_| and returns true if it is an exact match.
   bool UpdateFaviconCandidate(const GURL& url,
                               const GURL& image_url,
                               const gfx::Image& image,
+                              float score,
                               history::IconType icon_type);
 
   // Sets the image data for the favicon.
   void SetFavicon(const GURL& url,
                   const GURL& icon_url,
                   const gfx::Image& image,
                   history::IconType icon_type);
 
   // Converts the FAVICON's image data to an SkBitmap and sets it on the
   // NavigationEntry.
@@ skipping 56 matching lines @@
   // This handler's delegate.
   FaviconHandlerDelegate* delegate_;  // weak
 
   // Current favicon candidate.
   FaviconCandidate favicon_candidate_;
 
   DISALLOW_COPY_AND_ASSIGN(FaviconHandler);
 };
 
 #endif  // CHROME_BROWSER_FAVICON_FAVICON_HANDLER_H_