[NTP::SectionOrder] Replace CategoryFactory with a category ranker.

components/ntp_snippets/offline_pages/recent_tab_suggestions_provider.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_OFFLINE_PAGES_RECENT_TAB_SUGGESTIONS_PROVIDER_H_
 #define COMPONENTS_NTP_SNIPPETS_OFFLINE_PAGES_RECENT_TAB_SUGGESTIONS_PROVIDER_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "components/ntp_snippets/category.h"
-#include "components/ntp_snippets/category_factory.h"
 #include "components/ntp_snippets/category_status.h"
 #include "components/ntp_snippets/content_suggestion.h"
 #include "components/ntp_snippets/content_suggestions_provider.h"
 #include "components/offline_pages/core/offline_page_model.h"
 
 class PrefRegistrySimple;
 class PrefService;
 
 namespace ntp_snippets {
 
 // Provides recent tabs content suggestions from the offline pages model.
 class RecentTabSuggestionsProvider
     : public ContentSuggestionsProvider,
       public offline_pages::OfflinePageModel::Observer {
  public:
   RecentTabSuggestionsProvider(
       ContentSuggestionsProvider::Observer* observer,
-      CategoryFactory* category_factory,
       offline_pages::OfflinePageModel* offline_page_model,
       PrefService* pref_service);
   ~RecentTabSuggestionsProvider() override;
 
   // ContentSuggestionsProvider implementation.
   CategoryStatus GetCategoryStatus(Category category) override;
   CategoryInfo GetCategoryInfo(Category category) override;
   void DismissSuggestion(const ContentSuggestion::ID& suggestion_id) override;
   void FetchSuggestionImage(const ContentSuggestion::ID& suggestion_id,
                             const ImageFetchedCallback& callback) override;
@@ skipping 68 matching lines @@
   PrefService* pref_service_;
 
   base::WeakPtrFactory<RecentTabSuggestionsProvider> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RecentTabSuggestionsProvider);
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_OFFLINE_PAGES_RECENT_TAB_SUGGESTIONS_PROVIDER_H_