FetchMore functionality 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 f913d660fcaea61e10e56db31922492300e386bc..cb09cf9e552d623a63d05551dc9620476472256b 100644
--- a/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
+++ b/components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.cc
@@ -145,6 +145,12 @@ 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,