AppCaches which belong to hosted apps are not protected from deletion

webkit/appcache/appcache_storage_impl.h

 // Copyright (c) 2011 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 WEBKIT_APPCACHE_APPCACHE_STORAGE_IMPL_H_
 #define WEBKIT_APPCACHE_APPCACHE_STORAGE_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 13 matching lines @@
   explicit AppCacheStorageImpl(AppCacheService* service);
   virtual ~AppCacheStorageImpl();
 
   void Initialize(const FilePath& cache_directory,
                   base::MessageLoopProxy* cache_thread);
   void Disable();
   bool is_disabled() const { return is_disabled_; }
 
   // AppCacheStorage methods, see the base class for doc comments.
   virtual void GetAllInfo(Delegate* delegate);
+  virtual void SyncGetAllInfo(Delegate* delegate);
   virtual void LoadCache(int64 id, Delegate* delegate);
   virtual void LoadOrCreateGroup(const GURL& manifest_url, Delegate* delegate);
+  virtual void SyncLoadOrCreateGroup(const GURL& manifest_url,
+                                     Delegate* delegate);
   virtual void StoreGroupAndNewestCache(
       AppCacheGroup* group, AppCache* newest_cache, Delegate* delegate);
   virtual void FindResponseForMainRequest(
       const GURL& url, const GURL& preferred_manifest_url, Delegate* delegate);
   virtual void FindResponseForSubRequest(
       AppCache* cache, const GURL& url,
       AppCacheEntry* found_entry, AppCacheEntry* found_fallback_entry,
       bool* found_network_namespace);
   virtual void MarkEntryAsForeign(const GURL& entry_url, int64 cache_id);
   virtual void MakeGroupObsolete(AppCacheGroup* group, Delegate* delegate);
+  virtual void SyncMakeGroupObsolete(AppCacheGroup* group, Delegate* delegate);
   virtual AppCacheResponseReader* CreateResponseReader(
       const GURL& manifest_url, int64 response_id);
   virtual AppCacheResponseWriter* CreateResponseWriter(
       const GURL& manifest_url);
   virtual void DoomResponses(
       const GURL& manifest_url, const std::vector<int64>& response_ids);
   virtual void DeleteResponses(
       const GURL& manifest_url, const std::vector<int64>& response_ids);
   virtual void PurgeMemory();
 
@@ skipping 94 matching lines @@
   // disk cache and cannot continue.
   bool is_disabled_;
 
   // TODO(michaeln): use a disk_cache per group (manifest or group_id).
   scoped_ptr<AppCacheDiskCache> disk_cache_;
 
   // Used to short-circuit certain operations without having to schedule
   // any tasks on the background database thread.
   std::deque<Task*> pending_simple_tasks_;
   ScopedRunnableMethodFactory<AppCacheStorageImpl> method_factory_;
-
-  FRIEND_TEST_ALL_PREFIXES(ChromeAppCacheServiceTest, KeepOnDestruction);
-  FRIEND_TEST_ALL_PREFIXES(ChromeAppCacheServiceTest, RemoveOnDestruction);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_APPCACHE_STORAGE_IMPL_H_