Provide assumed favicon for intents if service provider page was never visited.

chrome/browser/favicon/favicon_service.h

 // Copyright (c) 2011 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_SERVICE_H_
 #define CHROME_BROWSER_FAVICON_FAVICON_SERVICE_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 64 matching lines @@
   // page that has been browsed in the past. |expired| in the callback is
   // always false.
   Handle GetFaviconForURL(const GURL& page_url,
                           int icon_types,
                           CancelableRequestConsumerBase* consumer,
                           const FaviconDataCallback& callback);
 
   // Marks all types of favicon for the page as being out of date.
   void SetFaviconOutOfDateForPage(const GURL& page_url);
 
+  // Clone a Favicon from an existing page. Needed if you want to declare

[Greg Billock, 2011/11/11 17:47:56]

I'm not sure I understand. Does this method assign the favicon from old_page_url
to new_page_url?

Also, _f_avicon.

[groby-ooo-7-16, 2011/11/14 23:53:36]

Clarified text, hopefully.

On 2011/11/11 17:47:56, Greg Billock wrote:

+  // favicons (tentatively) in advance, before a page was ever visited.
+  void CloneFavicon(const GURL& old_page_url, const GURL& new_page_url);
+
   // Allows the importer to set many favicons for many pages at once. The pages
   // must exist, any favicon sets for unknown pages will be discarded. Existing
   // favicons will not be overwritten.
   void SetImportedFavicons(
       const std::vector<history::ImportedFaviconUsage>& favicon_usage);
 
   // Sets the favicon for a page.
   void SetFavicon(const GURL& page_url,
                   const GURL& icon_url,
                   const std::vector<unsigned char>& image_data,
                   history::IconType icon_type);
 
  private:
 
 
   Profile* profile_;
 
   // Helper to forward an empty result if we cannot get the history service.
   void ForwardEmptyResultAsync(GetFaviconRequest* request);
 
   DISALLOW_COPY_AND_ASSIGN(FaviconService);
 };
 
 #endif  // CHROME_BROWSER_FAVICON_FAVICON_SERVICE_H_