RemoteContentSuggestions: Stores the time of the last successful background fetch in a pref

components/ntp_snippets/remote/ntp_snippets_fetcher.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/ntp_snippets/remote/ntp_snippets_fetcher.h"
 
 #include <cstdlib>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 987 matching lines @@
   DCHECK(status_code == FetchResult::SUCCESS || !categories.has_value());
 
   last_status_ = FetchResultToString(status_code) + error_details;
 
   UMA_HISTOGRAM_ENUMERATION("NewTabPage.Snippets.FetchResult",
                             static_cast<int>(status_code),
                             static_cast<int>(FetchResult::RESULT_MAX));
 
   DVLOG(1) << "Fetch finished: " << last_status_;
 
-  std::move(callback).Run(std::move(categories));
+  std::move(callback).Run(status_code, std::move(categories));
 }
 
 bool NTPSnippetsFetcher::JsonToSnippets(const base::Value& parsed,
                                         FetchedCategoriesVector* categories) {
   const base::DictionaryValue* top_dict = nullptr;
   if (!parsed.GetAsDictionary(&top_dict)) {
     return false;
   }
 
   switch (fetch_api_) {
@@ skipping 78 matching lines @@
   NOTREACHED();
   return false;
 }
 
 bool NTPSnippetsFetcher::NeedsAuthentication() const {
   return (personalization_ == Personalization::kPersonal ||
           personalization_ == Personalization::kBoth);
 }
 
 }  // namespace ntp_snippets