Add the JobComplete callback and error/interrupt information

content/browser/background_fetch/background_fetch_job_data.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_DATA_H_
 #define CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_DATA_H_
 
 #include <string>
 #include <unordered_map>
 
 #include "base/macros.h"
 #include "content/browser/background_fetch/background_fetch_request_info.h"
 #include "content/common/content_export.h"
+#include "content/public/browser/download_interrupt_reasons.h"
+#include "content/public/browser/download_item.h"
 #include "url/origin.h"
 
 namespace content {
 
 // The BackgroundFetchJobData class provides the interface from the
 // JobController to the data storage in the DataManager. It has a reference
 // to the DataManager and invokes calls given the stored batch_guid.
 class CONTENT_EXPORT BackgroundFetchJobData {
  public:
   explicit BackgroundFetchJobData(BackgroundFetchRequestInfos& request_infos);
   ~BackgroundFetchJobData();
 
   // Called by the JobController to inform the JobData that the given fetch
-  // has completed. The JobData returns a boolean indicating whether there
+  // has been updated. The JobData returns a boolean indicating whether there
   // are more requests to process.
-  bool BackgroundFetchRequestInfoComplete(const std::string& fetch_guid);
+  bool UpdateBackgroundFetchRequestState(
+      const std::string& fetch_guid,
+      DownloadItem::DownloadState state,
+      DownloadInterruptReason interrupt_reason);
 
   // Called by the JobController to get a BackgroundFetchRequestInfo to
   // process.
   const BackgroundFetchRequestInfo& GetNextBackgroundFetchRequestInfo();
 
   // Indicates whether all requests have been handed to the JobController.
   bool HasRequestsRemaining() const;
 
   // Indicates whether all requests have been handed out and completed.
   bool IsComplete() const;
@@ skipping 10 matching lines @@
   // outstanding requests should be in this map.
   std::unordered_map<std::string, int> request_info_index_;
   size_t next_request_info_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundFetchJobData);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_DATA_H_