[NTP Snippets] Refactor background scheduling for remote suggestions

components/ntp_snippets/content_suggestions_service.h

 // 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.
 
 #ifndef COMPONENTS_NTP_SNIPPETS_CONTENT_SUGGESTIONS_SERVICE_H_
 #define COMPONENTS_NTP_SNIPPETS_CONTENT_SUGGESTIONS_SERVICE_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 177 matching lines @@
   // reappearing. This function clears all suggestions of the given |category|
   // from such lists, making dismissed suggestions reappear (if the provider
   // supports it).
   void ClearDismissedSuggestionsForDebugging(Category category);
 
   CategoryFactory* category_factory() { return &category_factory_; }
 
   // The reference to the RemoteSuggestionsProvider provider should only be set
   // by the factory and only be used for scheduling, periodic fetching and
   // debugging.
-  RemoteSuggestionsProvider* ntp_snippets_service() {
-    return ntp_snippets_service_;
+  RemoteSuggestionsProvider* remote_suggestions_provider() {
+    return remote_suggestions_provider_;
   }
-  void set_ntp_snippets_service(
-      RemoteSuggestionsProvider* ntp_snippets_service) {
-    ntp_snippets_service_ = ntp_snippets_service;
+  void set_remote_suggestions_provider(
+      RemoteSuggestionsProvider* remote_suggestions_provider) {
+    remote_suggestions_provider_ = remote_suggestions_provider;
   }
 
   UserClassifier* user_classifier() { return &user_classifier_; }
 
  private:
   friend class ContentSuggestionsServiceTest;
 
   // Implementation of ContentSuggestionsProvider::Observer.
   void OnNewSuggestions(ContentSuggestionsProvider* provider,
                         Category category,
@@ skipping 94 matching lines @@
       history_service_observer_;
 
   base::ObserverList<Observer> observers_;
 
   const std::vector<ContentSuggestion> no_suggestions_;
 
   // Keep a direct reference to this special provider to redirect scheduling,
   // background fetching and debugging calls to it. If the
   // RemoteSuggestionsProvider is loaded, it is also present in |providers_|,
   // otherwise this is a nullptr.
-  RemoteSuggestionsProvider* ntp_snippets_service_;
+  RemoteSuggestionsProvider* remote_suggestions_provider_;
 
   PrefService* pref_service_;
 
   UserClassifier user_classifier_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSuggestionsService);
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_CONTENT_SUGGESTIONS_SERVICE_H_