Update all bookmarks which use an icon URL when a favicon's bitmap is updated

components/bookmarks/browser/bookmark_model.h

Index: components/bookmarks/browser/bookmark_model.h
diff --git a/components/bookmarks/browser/bookmark_model.h b/components/bookmarks/browser/bookmark_model.h
index e222790c4dc1a74035bc837566ef089f1e770ef0..ea0460ad80c2ac56b95e1aa7ae55214487680e67 100644
--- a/components/bookmarks/browser/bookmark_model.h
+++ b/components/bookmarks/browser/bookmark_model.h
@@ -166,6 +166,10 @@ class BookmarkModel : public KeyedService {
   // Returns the set of nodes with the |url|.
   void GetNodesByURL(const GURL& url, std::vector<const BookmarkNode*>* nodes);
 
+  // Returns the set of nodes which use the favicon at |icon_url|.
+  void GetNodesByIconURL(const GURL& icon_url,
+                         std::vector<const BookmarkNode*>* nodes);
+
   // Returns the most recently added user node for the |url|; urls from any
   // nodes that are not editable by the user are never returned by this call.
   // Returns NULL if |url| is not bookmarked.
@@ -296,9 +300,12 @@ class BookmarkModel : public KeyedService {
   void SetNodeSyncTransactionVersion(const BookmarkNode* node,
                                      int64 sync_transaction_version);
 
-  // Notify BookmarkModel that the favicons for |urls| have changed and have to
+  // Notify BookmarkModel that the favicons for the given page URLs
+  // (e.g. http://www.google.com) and the given icon URLs (e.g.
+  // http://www.google.com/favicon.ico) have changed and have to
   // be refetched. This notification is sent by BookmarkClient.
-  void OnFaviconChanged(const std::set<GURL>& urls);
+  void OnFaviconsChanged(const std::vector<GURL>& page_urls,
+                         const std::vector<GURL>& icon_urls);
 
   // Returns the client used by this BookmarkModel.
   BookmarkClient* client() const { return client_; }