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components/ntp_snippets/ntp_snippets_fetcher.h

Index: components/ntp_snippets/ntp_snippets_fetcher.h
diff --git a/components/ntp_snippets/ntp_snippets_fetcher.h b/components/ntp_snippets/ntp_snippets_fetcher.h
index 33f6c180ff2cc205d0bee64c7cfe6b7c2af5d015..daa8bae58d0cf2b3aee947b3e58e7f6161925fcd 100644
--- a/components/ntp_snippets/ntp_snippets_fetcher.h
+++ b/components/ntp_snippets/ntp_snippets_fetcher.h
@@ -91,6 +91,7 @@ class NTPSnippetsFetcher : public OAuth2TokenService::Consumer,
 
   // Fetches snippets from the server. |hosts| restricts the results to a set of
   // hosts, e.g. "www.google.com". An empty host set produces an error.

[Marc Treib, 2016/08/25 09:01:41]

Not your doing, but: Do you mind updating this comment? It only applies if host
restrictions are on, and they're actually off by default now.

[sfiera, 2016/08/25 10:39:56]

Done.

+  // Suggestions in |excluded_ids| will not be returned.
   //
   // If an ongoing fetch exists, it will be cancelled and a new one started,
   // without triggering an additional callback (i.e. not noticeable by
@@ -100,6 +101,7 @@ class NTPSnippetsFetcher : public OAuth2TokenService::Consumer,
   // |interactive_request| is set to true (use only for user-initiated fetches).
   void FetchSnippetsFromHosts(const std::set<std::string>& hosts,
                               const std::string& language_code,
+                              const std::set<std::string>& excluded_ids,
                               int count,
                               bool interactive_request);
 
@@ -146,6 +148,7 @@ class NTPSnippetsFetcher : public OAuth2TokenService::Consumer,
     bool only_return_personalized_results;
     std::string user_locale;
     std::set<std::string> host_restricts;
+    std::set<std::string> excluded_ids;
     int count_to_fetch;
 
     RequestParams();
@@ -201,6 +204,9 @@ class NTPSnippetsFetcher : public OAuth2TokenService::Consumer,
   // Hosts to restrict the snippets to.
   std::set<std::string> hosts_;
 
+  // Snippets to exclude from the results.
+  std::set<std::string> excluded_ids_;
+
   // Count of snippets to fetch.
   int count_to_fetch_;