FetchMore functionality backend

components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc

Index: components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc
diff --git a/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc b/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc
index c495c07b285c1d9d1fa8e8a051e59facf07c3b94..41f8c2b1bb2ba77c512b3ae3e8696792106d6fbd 100644
--- a/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc
+++ b/components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.cc
@@ -101,6 +101,12 @@ void RecentTabSuggestionsProvider::FetchSuggestionImage(
       FROM_HERE, base::Bind(callback, gfx::Image()));
 }
 
+void RecentTabSuggestionsProvider::FetchMore(
+    const Category& category,
+    const FetchedMoreCallback& callback) {
+  NOTREACHED();
+}
+
 void RecentTabSuggestionsProvider::ClearHistory(
     base::Time begin,
     base::Time end,