Store BackgroundFetchRequestInfo in a refcounted pointer

content/browser/background_fetch/background_fetch_job_controller.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 CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_CONTROLLER_H_
 #define CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_CONTROLLER_H_
 
 #include <memory>
 #include <string>
 #include <unordered_map>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
-#include "base/optional.h"
 #include "content/browser/background_fetch/background_fetch_registration_id.h"
 #include "content/browser/background_fetch/background_fetch_request_info.h"
 #include "content/common/background_fetch/background_fetch_types.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace net {
 class URLRequestContextGetter;
 }
 
@@ skipping 16 matching lines @@
       const BackgroundFetchRegistrationId& registration_id,
       const BackgroundFetchOptions& options,
       BackgroundFetchDataManager* data_manager,
       BrowserContext* browser_context,
       scoped_refptr<net::URLRequestContextGetter> request_context,
       CompletedCallback completed_callback);
   ~BackgroundFetchJobController();
 
   // Starts fetching the |initial_fetches|. The controller will continue to
   // fetch new content until all requests have been handled.
-  void Start(std::vector<BackgroundFetchRequestInfo> initial_requests);
+  void Start(
+      std::vector<scoped_refptr<BackgroundFetchRequestInfo>> initial_requests);
 
   // Updates the representation of this Background Fetch in the user interface
   // to match the given |title|.
   void UpdateUI(const std::string& title);
 
   // Immediately aborts this Background Fetch by request of the developer.
   void Abort();
 
   // Returns the current state of this Job Controller.
   State state() const { return state_; }
 
   // Returns the registration id for which this job is fetching data.
   const BackgroundFetchRegistrationId& registration_id() const {
     return registration_id_;
   }
 
   // Returns the options with which this job is fetching data.
   const BackgroundFetchOptions& options() const { return options_; }
 
  private:
   class Core;
 
   // Requests the download manager to start fetching |request|.
-  void StartRequest(const BackgroundFetchRequestInfo& request);
+  void StartRequest(scoped_refptr<BackgroundFetchRequestInfo> request);
 
   // Called when the given |request| has started fetching, after having been
   // assigned the |download_guid| by the download system.
-  void DidStartRequest(const BackgroundFetchRequestInfo& request,
+  void DidStartRequest(scoped_refptr<BackgroundFetchRequestInfo> request,
                        const std::string& download_guid);
 
   // Called when the given |request| has been completed.
-  void DidCompleteRequest(const BackgroundFetchRequestInfo& request);
+  void DidCompleteRequest(scoped_refptr<BackgroundFetchRequestInfo> request);
 
   // Called when a completed download has been marked as such in the DataManager
   // and the next request, if any, has been read from storage.
-  void DidGetNextRequest(
-      const base::Optional<BackgroundFetchRequestInfo>& request);
+  void DidGetNextRequest(scoped_refptr<BackgroundFetchRequestInfo> request);
 
   // The registration id on behalf of which this controller is fetching data.
   BackgroundFetchRegistrationId registration_id_;
 
   // Options for the represented background fetch registration.
   BackgroundFetchOptions options_;
 
   // The current state of this Job Controller.
   State state_ = State::INITIALIZED;
 
@@ skipping 12 matching lines @@
   CompletedCallback completed_callback_;
 
   base::WeakPtrFactory<BackgroundFetchJobController> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundFetchJobController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_CONTROLLER_H_