[ServiceWorker] Added size deltas and total size computation for QuotaM.

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 <map>
 #include <set>
 #include <vector>
@@ skipping 105 matching lines @@
   // Otherwise, returns an error.
   Status ReadRegistration(
       int64 registration_id,
       const GURL& origin,
       RegistrationData* registration,
       std::vector<ResourceRecord>* resources);
 
   // Writes |registration| and |resources| into the database and does following
   // things:
   //   - If an old version of the registration exists, deletes it and sets
-  //   |deleted_version_id| to the old version id and
+  //   |deleted_version| to the old version registration data object
   //   |newly_purgeable_resources| to its resources. Otherwise, sets
-  //   |deleted_version_id| to -1.
+  //   |deleted_version->version_id| to -1.
   //   - Bumps the next registration id and the next version id if needed.
   //   - Removes |resources| from the uncommitted list if exist.
   // Returns OK they are successfully written. Otherwise, returns an error.
   Status WriteRegistration(const RegistrationData& registration,
                            const std::vector<ResourceRecord>& resources,
-                           int64* deleted_version_id,
+                           RegistrationData* deleted_version,
                            std::vector<int64>* newly_purgeable_resources);
 
   // Updates a registration for |registration_id| to an active state. Returns OK
   // if it's successfully updated. Otherwise, returns an error.
   Status UpdateVersionToActive(
       int64 registration_id,
       const GURL& origin);
 
   // Updates last check time of a registration for |registration_id| by |time|.
   // Returns OK if it's successfully updated. Otherwise, returns an error.
@@ skipping 186 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerDatabaseTest, DatabaseVersion);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerDatabaseTest, GetNextAvailableIds);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerDatabaseTest, DestroyDatabase);
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerDatabase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_DATABASE_H_