Change FaviconData to be able to return data for multiple bitmaps for same icon URL

chrome/browser/bookmarks/bookmark_model.h

Index: chrome/browser/bookmarks/bookmark_model.h
diff --git a/chrome/browser/bookmarks/bookmark_model.h b/chrome/browser/bookmarks/bookmark_model.h
index 1f1f8ea5954e813e7617097efd48ace293d9eae0..f78d602b711c85fc05a34ff38450fcb631e65345 100644
--- a/chrome/browser/bookmarks/bookmark_model.h
+++ b/chrome/browser/bookmarks/bookmark_model.h
@@ -414,8 +414,9 @@ class BookmarkModel : public content::NotificationObserver,
 
   // Notification that a favicon has finished loading. If we can decode the
   // favicon, FaviconLoaded is invoked.
-  void OnFaviconDataAvailable(FaviconService::Handle handle,
-                              history::FaviconData favicon);
+  void OnFaviconDataAvailable(
+      FaviconService::Handle handle,
+      const history::FaviconImageResult& image_result);
 
   // Invoked from the node to load the favicon. Requests the favicon from the
   // favicon service.