Make the BackgroundFetchJobController a per-job object

content/browser/background_fetch/background_fetch_job_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_BACKGROUND_FETCH_JOB_INFO_H
 #define CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_INFO_H
 
 #include <string>
 #include <vector>
 
-#include "base/macros.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "url/origin.h"
 
 namespace content {
 
 // Class to encapsulate a batch of FetchRequests into a single grouping which is
 // what the developer requested.
 class CONTENT_EXPORT BackgroundFetchJobInfo {
  public:
   BackgroundFetchJobInfo(const std::string& tag,
                          const url::Origin& origin,
                          int64_t service_worker_registration_id);
+  // TODO(harkness): Remove copy constructor once the final (non-map-based)
+  // state management is in place and make the class DISALLOW_COPY_AND_ASSIGN.
+  BackgroundFetchJobInfo();
+  BackgroundFetchJobInfo(const BackgroundFetchJobInfo& other);
   ~BackgroundFetchJobInfo();
 
   const std::string& guid() const { return guid_; }
   const std::string& tag() const { return tag_; }
   const url::Origin& origin() const { return origin_; }
   int64_t service_worker_registration_id() const {
     return service_worker_registration_id_;
   }
 
   const std::vector<std::string>& request_guids() const {
     return request_guids_;
   }
 
  private:
   std::string guid_;
   std::string tag_;
   url::Origin origin_;
   int64_t service_worker_registration_id_ = kInvalidServiceWorkerRegistrationId;
   std::vector<std::string> request_guids_;
 
   // TODO(harkness): Other things this class should track: estimated download
   // size, current download size, total number of files, number of complete
   // files, (possibly) data to show the notification, (possibly) list of in
   // progress FetchRequests.
-
-  DISALLOW_COPY_AND_ASSIGN(BackgroundFetchJobInfo);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_INFO_H