FetchMore functionality backend

components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h

Index: components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h
diff --git a/components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h b/components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h
index 2bf8ebb0fe2c0a9df2101ac73bc27f50d6cea797..0ba4f0aec97f3ad7639f558ef03d6796a2a1e805 100644
--- a/components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h
+++ b/components/ntp_snippets/bookmarks/bookmark_suggestions_provider.h
@@ -42,6 +42,8 @@ class BookmarkSuggestionsProvider : public ContentSuggestionsProvider,
   void DismissSuggestion(const ContentSuggestion::ID& suggestion_id) override;
   void FetchSuggestionImage(const ContentSuggestion::ID& suggestion_id,
                             const ImageFetchedCallback& callback) override;
+  void FetchMore(const Category& category,

[vitaliii, 2016/11/01 23:29:57]

nit:FetchMoreSuggestions
currently it is difficult to understand what is actually fetched by looking at
the declaration only.

[fhorschig, 2016/11/02 05:05:27]

The function is inherited from the SuggestionsProvider which makes it clear that
suggestions are fetched. As the function might be used for other fetches, too,
the name was changed in CL 2466863003.

+                 const FetchedMoreCallback& callback) override;
   void ClearHistory(
       base::Time begin,
       base::Time end,