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

chrome/browser/history/history.h

Index: chrome/browser/history/history.h
diff --git a/chrome/browser/history/history.h b/chrome/browser/history/history.h
index 69fda8bc97b9ddd6773302bc72290e5b8c5eef6b..bba2e86eb9647093cd9ed3bb1757915038bce398 100644
--- a/chrome/browser/history/history.h
+++ b/chrome/browser/history/history.h
@@ -703,10 +703,6 @@ class HistoryService : public CancelableRequestProvider,
                         const GURL& page_url,
                         int icon_types);
 
-  // Used by the FaviconService to get a favicon from the history backend.
-  void GetFaviconForID(FaviconService::GetFaviconRequest* request,
-                       history::FaviconID id);
-
   // Used by the FaviconService to mark the favicon for the page as being out
   // of date.
   void SetFaviconOutOfDateForPage(const GURL& page_url);