[Remote suggestions] Get favicon URLs from archive

components/ntp_snippets/content_suggestion.cc

Index: components/ntp_snippets/content_suggestion.cc
diff --git a/components/ntp_snippets/content_suggestion.cc b/components/ntp_snippets/content_suggestion.cc
index 3341aad37d5534dfbce98e14fd1ba48ea6abe503..a26bfa1e25505021cfd3021c2d4c556b0cff17c6 100644
--- a/components/ntp_snippets/content_suggestion.cc
+++ b/components/ntp_snippets/content_suggestion.cc
@@ -43,6 +43,11 @@ std::ostream& operator<<(std::ostream& os, const ContentSuggestion::ID& id) {
   return os;
 }
 
+// static
+GURL ContentSuggestion::GetFaviconDomain(const GURL& favicon_url) {
+  return favicon_url.GetWithEmptyPath();
+}
+
 void ContentSuggestion::set_download_suggestion_extra(
     std::unique_ptr<DownloadSuggestionExtra> download_suggestion_extra) {
   DCHECK(id_.category().IsKnownCategory(KnownCategories::DOWNLOADS));