ServiceWorker: Enable UseCounter for ServiceWorkerGlobalScope

content/browser/service_worker/service_worker_database.h

 // Copyright 2014 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_SERVICE_WORKER_SERVICE_WORKER_DATABASE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 57 matching lines @@
     // version may be in the ACTIVATED state or in the INSTALLED state.
     GURL script;
     int64_t version_id;
     bool is_active;
     bool has_fetch_handler;
     base::Time last_update_check;
     std::vector<GURL> foreign_fetch_scopes;
     std::vector<url::Origin> foreign_fetch_origins;
     base::Optional<TrialTokenValidator::FeatureToTokensMap> origin_trial_tokens;
     NavigationPreloadState navigation_preload_state;
+    std::set<uint32_t> used_features;
 
     // Not populated until ServiceWorkerStorage::StoreRegistration is called.
     int64_t resources_total_size_bytes;
 
     RegistrationData();
     RegistrationData(const RegistrationData& other);
     ~RegistrationData();
   };
 
   struct ResourceRecord {
@@ skipping 308 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerDatabaseTest,
                            UserData_UninitializedDatabase);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerDatabaseTest, DestroyDatabase);
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDatabase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_H_