Add the JobComplete callback and error/interrupt information

content/browser/background_fetch/background_fetch_request_info.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_REQUEST_INFO_H_
 #define CONTENT_BROWSER_BACKGROUND_FETCH_REQUEST_INFO_H_
 
 #include <vector>
 
 #include "content/common/content_export.h"
+#include "content/public/browser/download_interrupt_reasons.h"
+#include "content/public/browser/download_item.h"
 #include "url/gurl.h"
 
 namespace content {
 
 // Simple class to encapsulate the components of a fetch request.
 class CONTENT_EXPORT BackgroundFetchRequestInfo {
  public:
   BackgroundFetchRequestInfo();
   BackgroundFetchRequestInfo(const GURL& url, const std::string& tag);
   // TODO(harkness): Remove copy constructor once the final (non-map-based)
   // state management is in place.
   BackgroundFetchRequestInfo(const BackgroundFetchRequestInfo& request);
   ~BackgroundFetchRequestInfo();
 
   const std::string& guid() const { return guid_; }
   const GURL& url() const { return url_; }
   const std::string& tag() const { return tag_; }
 
-  bool complete() const { return complete_; }
-  void set_complete(bool complete) { complete_ = complete; }
+  DownloadItem::DownloadState state() const { return state_; }
+  void set_state(DownloadItem::DownloadState state) { state_ = state; }
 
   const std::string& download_guid() const { return download_guid_; }
   void set_download_guid(const std::string& download_guid) {
     download_guid_ = download_guid;
   }
 
+  DownloadInterruptReason interrupt_reason() const { return interrupt_reason_; }
+  void set_interrupt_reason(DownloadInterruptReason reason) {
+    interrupt_reason_ = reason;
+  }
+
  private:
   std::string guid_;
   GURL url_;
   std::string tag_;
-  bool complete_ = false;
   std::string download_guid_;
+  DownloadItem::DownloadState state_ =
+      DownloadItem::DownloadState::MAX_DOWNLOAD_STATE;
+  DownloadInterruptReason interrupt_reason_ =
+      DownloadInterruptReason::DOWNLOAD_INTERRUPT_REASON_NONE;
 };
 
 using BackgroundFetchRequestInfos = std::vector<BackgroundFetchRequestInfo>;
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_FETCH_REQUEST_INFO_H_