Add support to process favicons from Web Manifests

components/favicon/core/favicon_driver_impl.cc

Index: components/favicon/core/favicon_driver_impl.cc
diff --git a/components/favicon/core/favicon_driver_impl.cc b/components/favicon/core/favicon_driver_impl.cc
index f77d11b54a51df3495a6708d2d046449acba2c72..6865d8e2b15351f11dd71db7b5ad13a9c5ef90e9 100644
--- a/components/favicon/core/favicon_driver_impl.cc
+++ b/components/favicon/core/favicon_driver_impl.cc
@@ -96,13 +96,17 @@ void FaviconDriverImpl::SetFaviconOutOfDateForPage(const GURL& url,
   }
 }
 
-void FaviconDriverImpl::OnUpdateFaviconURL(
+void FaviconDriverImpl::OnUpdateCandidates(
     const GURL& page_url,
-    const std::vector<FaviconURL>& candidates) {
-  DCHECK(!candidates.empty());
+    const std::vector<FaviconURL>& candidates,
+    const base::Optional<GURL>& manifest_url) {
   RecordCandidateMetrics(candidates);
-  for (const std::unique_ptr<FaviconHandler>& handler : handlers_)
-    handler->OnUpdateFaviconURL(page_url, candidates);
+  for (const std::unique_ptr<FaviconHandler>& handler : handlers_) {
+    handler->OnUpdateCandidates(page_url, candidates,
+                                handler->icon_types() & favicon_base::FAVICON
+                                    ? manifest_url
+                                    : base::nullopt);
+  }
 }
 
 }  // namespace favicon