[NTP Snippets] FetchMore backend

components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc

Index: components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
diff --git a/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc b/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
index 384352ebf4f18275ffb5424230d0a2677834b318..48572a8536071973a38ccfd31a0aa0a3cf976201 100644
--- a/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
+++ b/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
@@ -149,6 +149,12 @@ void ForeignSessionsSuggestionsProvider::FetchSuggestionImage(
       FROM_HERE, base::Bind(callback, gfx::Image()));
 }
 
+void ForeignSessionsSuggestionsProvider::FetchMore(
+    const Category& category,
+    FetchedMoreCallback callback) {
+  // Ignored.
+}
+
 void ForeignSessionsSuggestionsProvider::ClearHistory(
     base::Time begin,
     base::Time end,