Reland of [Background Sync] Allow sync manager access from uncontrolled clients

content/browser/background_sync/background_sync_manager.h

 // Copyright 2015 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_SYNC_BACKGROUND_SYNC_MANAGER_H_
 #define CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_MANAGER_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 50 matching lines @@
 
   // Stores the given background sync registration and adds it to the scheduling
   // queue. It will overwrite an existing registration with the same tag and
   // periodicity unless they're identical (save for the id). Calls |callback|
   // with BACKGROUND_SYNC_STATUS_OK and the accepted registration on success.
   // The accepted registration will have a unique id. It may also have altered
   // parameters if the user or UA chose different parameters than those
   // supplied.
   void Register(int64 sw_registration_id,
                 const BackgroundSyncRegistrationOptions& options,
+                bool requested_from_service_worker,
                 const StatusAndRegistrationCallback& callback);
 
   // Removes the background sync with tag |sync_registration_tag|, periodicity
   // |periodicity|, and id |sync_registration_id|. Calls |callback| with
   // BACKGROUND_SYNC_STATUS_NOT_FOUND if no match is found. Calls |callback|
   // with BACKGROUND_SYNC_STATUS_OK on success.
   void Unregister(
       int64 sw_registration_id,
       const std::string& sync_registration_tag,
       SyncPeriodicity periodicity,
@@ skipping 107 matching lines @@
 
   void InitImpl(const base::Closure& callback);
   void InitDidGetDataFromBackend(
       const base::Closure& callback,
       const std::vector<std::pair<int64, std::string>>& user_data,
       ServiceWorkerStatusCode status);
 
   // Register callbacks
   void RegisterImpl(int64 sw_registration_id,
                     const BackgroundSyncRegistrationOptions& options,
+                    bool requested_from_service_worker,
                     const StatusAndRegistrationCallback& callback);
   void RegisterDidStore(int64 sw_registration_id,
                         const BackgroundSyncRegistration& sync_registration,
                         const StatusAndRegistrationCallback& callback,
                         ServiceWorkerStatusCode status);
 
   // Unregister callbacks
   void UnregisterImpl(
       int64 sw_registration_id,
       const RegistrationKey& registration_key,
@@ skipping 92 matching lines @@
   scoped_ptr<BackgroundSyncPowerObserver> power_observer_;
 
   base::WeakPtrFactory<BackgroundSyncManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_MANAGER_H_