Prefetching: Introduce store commands abstractions to be used by tasks.

components/offline_pages/core/prefetch/prefetch_service_test_taco.h

 // Copyright 2017 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_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_TEST_TACO_H_
 #define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_TEST_TACO_H_
 
 #include <memory>
 
 #include "base/logging.h"
 
 namespace offline_pages {
 class OfflineMetricsCollector;
 class PrefetchDispatcher;
 class PrefetchGCMHandler;
 class PrefetchService;
-class PrefetchStore;
+class PrefetchStoreCommandFactory;
 class SuggestedArticlesObserver;
 
 // The taco class acts as a wrapper around the prefetch service making
 // it easy to create for tests, using test versions of the dependencies.
 // This class is like a taco shell, and the filling is the prefetch service.
 // The default dependencies may be replaced by the test author to provide
 // custom versions that have test-specific hooks.
 //
 // Default types of objects held by the test service:
 // * TestOfflineMetricsCollector
 // * PrefetchDispatcherImpl
 // * TestPrefetchGCMHandler
-// * PrefetchInMemoryStore
+// * PrefetchStoreCommandFactory (implementation TBD)
 // * |nullptr| SuggestedArticlesObserver, since this is default just a lifetime
 //   arrangement.
 class PrefetchServiceTestTaco {
  public:
   PrefetchServiceTestTaco();
   ~PrefetchServiceTestTaco();
 
   // These methods must be called before CreatePrefetchService() is invoked.
   // If called after they will CHECK().
   void SetOfflineMetricsCollector(
       std::unique_ptr<OfflineMetricsCollector> metrics_collector);
   void SetPrefetchDispatcher(std::unique_ptr<PrefetchDispatcher> dispatcher);
   void SetPrefetchGCMHandler(std::unique_ptr<PrefetchGCMHandler> gcm_handler);
-  void SetPrefetchStore(std::unique_ptr<PrefetchStore> prefetch_store);
+  void SetPrefetchStoreCommandFactory(
+      std::unique_ptr<PrefetchStoreCommandFactory> store_command_factory);
   void SetSuggestedArticlesObserver(
       std::unique_ptr<SuggestedArticlesObserver> suggested_articles_observer);
 
   // Creates and caches an instance of PrefetchService, using default or
   // overridden test dependencies.
   void CreatePrefetchService();
 
   // Once CreatePrefetchService() is called, this accessor method starts
   // returning the PrefetchService.
 
   PrefetchService* prefetch_service() {
     CHECK(prefetch_service_);
     return prefetch_service_.get();
   }
 
  private:
   std::unique_ptr<OfflineMetricsCollector> metrics_collector_;
   std::unique_ptr<PrefetchDispatcher> dispatcher_;
   std::unique_ptr<PrefetchGCMHandler> gcm_handler_;
-  std::unique_ptr<PrefetchStore> store_;
+  std::unique_ptr<PrefetchStoreCommandFactory> store_command_factory_;
   std::unique_ptr<SuggestedArticlesObserver> suggested_articles_observer_;
 
   std::unique_ptr<PrefetchService> prefetch_service_;
 };
 
 }  // namespace offline_pages
 #endif  // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_TEST_TACO_H_