Add support to process favicons from Web Manifests

components/favicon/core/favicon_driver_impl.h

Index: components/favicon/core/favicon_driver_impl.h
diff --git a/components/favicon/core/favicon_driver_impl.h b/components/favicon/core/favicon_driver_impl.h
index 1dd73112dbc8a69b177fe8ec83f687b4c61bb0cb..e97a394aabb642571eb31c79d4f76dbbc0eba296 100644
--- a/components/favicon/core/favicon_driver_impl.h
+++ b/components/favicon/core/favicon_driver_impl.h
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "base/macros.h"
+#include "base/optional.h"
 #include "components/favicon/core/favicon_driver.h"
 #include "components/favicon/core/favicon_handler.h"
 
@@ -60,7 +61,8 @@ class FaviconDriverImpl : public FaviconDriver,
 
   // Broadcasts new favicon URL candidates to FaviconHandlers.
   void OnUpdateCandidates(const GURL& page_url,
-                          const std::vector<FaviconURL>& candidates);
+                          const std::vector<FaviconURL>& candidates,
+                          const base::Optional<GURL>& manifest_url);
 
  protected:
   history::HistoryService* history_service() { return history_service_; }