Dispatch a bare Service Worker event for a finished Background Fetch

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 <memory>
-#include <string>
-#include <vector>
-
-#include "base/containers/flat_set.h"
-#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 BackgroundFetchJobResponseData;
-class BackgroundFetchRequestInfo;
-
-// 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);
-  ~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_;
-  }
-
-  // The |job_response_data| holds information to build a response object to
-  // return to the Mojo service.
-  void set_job_response_data(
-      std::unique_ptr<BackgroundFetchJobResponseData> job_response_data);
-  BackgroundFetchJobResponseData* job_response_data() const {
-    return job_response_data_.get();
-  }
-
-  // The following methods are used to track currently in progress requests.
-  void set_num_requests(size_t num_requests) { num_requests_ = num_requests; }
-  size_t num_requests() const { return num_requests_; }
-  bool IsComplete() const;
-  bool HasRequestsRemaining() const;
-  size_t next_request_index() const { return next_request_index_; }
-
-  void AddActiveRequest(std::unique_ptr<BackgroundFetchRequestInfo> request);
-  BackgroundFetchRequestInfo* GetActiveRequest(
-      const std::string& request_guid) const;
-  void RemoveActiveRequest(const std::string& request_guid);
-
- private:
-  std::string guid_;
-  std::string tag_;
-  url::Origin origin_;
-  int64_t service_worker_registration_id_ = kInvalidServiceWorkerRegistrationId;
-  std::vector<std::string> request_guids_;
-
-  // Tracking information for currently executing requests.
-  base::flat_set<std::unique_ptr<BackgroundFetchRequestInfo>> active_requests_;
-  size_t num_requests_ = INT_MAX;
-  size_t next_request_index_ = 0;
-
-  // 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.
-
-  // This value will be non-null only when the job is complete and the response
-  // to the caller is being assembled.
-  std::unique_ptr<BackgroundFetchJobResponseData> job_response_data_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackgroundFetchJobInfo);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_BACKGROUND_FETCH_BACKGROUND_FETCH_JOB_INFO_H