FetchMore functionality backend

components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc

Index: components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc
diff --git a/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc b/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc
index f1f30982be07637a35f3f0591c9538c9f48bf29f..3190ea752c2ecabfb8d2eb5a8bdda5a3fb8d6b86 100644
--- a/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc
+++ b/components/ntp_snippets/physical_web_pages/physical_web_page_suggestions_provider.cc
@@ -91,6 +91,12 @@ void PhysicalWebPageSuggestionsProvider::FetchSuggestionImage(
       FROM_HERE, base::Bind(callback, gfx::Image()));
 }
 
+void PhysicalWebPageSuggestionsProvider::FetchMore(
+    const Category& category,
+    const FetchedMoreCallback& callback) {
+  NOTREACHED();
+}
+
 void PhysicalWebPageSuggestionsProvider::ClearHistory(
     base::Time begin,
     base::Time end,