Service Worker: Respect the "clear on exit" content setting

content/browser/service_worker/service_worker_storage.h

Index: content/browser/service_worker/service_worker_storage.h
diff --git a/content/browser/service_worker/service_worker_storage.h b/content/browser/service_worker/service_worker_storage.h
index 34836f3e28ca462d7c556947f1f3fe9e6f33ab30..708384256b55911f7529edcd2bb11fdfc0747c32 100644
--- a/content/browser/service_worker/service_worker_storage.h
+++ b/content/browser/service_worker/service_worker_storage.h
@@ -28,6 +28,7 @@ class SingleThreadTaskRunner;
 
 namespace storage {
 class QuotaManagerProxy;
+class SpecialStoragePolicy;
 }
 
 namespace content {
@@ -63,7 +64,8 @@ class CONTENT_EXPORT ServiceWorkerStorage
       base::WeakPtr<ServiceWorkerContextCore> context,
       const scoped_refptr<base::SequencedTaskRunner>& database_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& disk_cache_thread,
-      storage::QuotaManagerProxy* quota_manager_proxy);
+      storage::QuotaManagerProxy* quota_manager_proxy,
+      storage::SpecialStoragePolicy* special_storage_policy);
 
   // Used for DeleteAndStartOver. Creates new storage based on |old_storage|.
   static scoped_ptr<ServiceWorkerStorage> Create(
@@ -175,6 +177,8 @@ class CONTENT_EXPORT ServiceWorkerStorage
                            UpdateRegistration);
   FRIEND_TEST_ALL_PREFIXES(ServiceWorkerResourceStorageDiskTest,
                            CleanupOnRestart);
+  FRIEND_TEST_ALL_PREFIXES(ServiceWorkerResourceStorageDiskTest,
+                           ClearOnExit);
 
   struct InitialData {
     int64 next_registration_id;
@@ -225,7 +229,8 @@ class CONTENT_EXPORT ServiceWorkerStorage
       base::WeakPtr<ServiceWorkerContextCore> context,
       const scoped_refptr<base::SequencedTaskRunner>& database_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& disk_cache_thread,
-      storage::QuotaManagerProxy* quota_manager_proxy);
+      storage::QuotaManagerProxy* quota_manager_proxy,
+      storage::SpecialStoragePolicy* special_storage_policy);
 
   base::FilePath GetDatabasePath();
   base::FilePath GetDiskCachePath();
@@ -302,6 +307,8 @@ class CONTENT_EXPORT ServiceWorkerStorage
   void DidCollectStaleResources(const std::vector<int64>& stale_resource_ids,
                                 ServiceWorkerDatabase::Status status);
 
+  void ClearSessionOnlyOrigins();
+
   // Static cross-thread helpers.
   static void CollectStaleResourcesFromDB(
       ServiceWorkerDatabase* database,
@@ -339,6 +346,9 @@ class CONTENT_EXPORT ServiceWorkerStorage
       int64 registration_id,
       const GURL& origin,
       const FindInDBCallback& callback);
+  static void DeleteAllDataForOriginsFromDB(
+      ServiceWorkerDatabase* database,
+      const std::set<GURL>& origins);
 
   void ScheduleDeleteAndStartOver();
   void DidDeleteDatabase(
@@ -379,6 +389,7 @@ class CONTENT_EXPORT ServiceWorkerStorage
   scoped_refptr<base::SequencedTaskRunner> database_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> disk_cache_thread_;
   scoped_refptr<storage::QuotaManagerProxy> quota_manager_proxy_;
+  scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy_;
   scoped_ptr<ServiceWorkerDiskCache> disk_cache_;
   std::deque<int64> purgeable_resource_ids_;
   bool is_purge_pending_;