AppCaches which belong to hosted apps are not protected from deletion

webkit/appcache/mock_appcache_storage.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_MOCK_APPCACHE_STORAGE_H_
 #define WEBKIT_APPCACHE_MOCK_APPCACHE_STORAGE_H_
 
 #include <deque>
 #include <map>
 #include <vector>
@@ skipping 12 matching lines @@
 // For use in unit tests.
 // Note: This class is also being used to bootstrap our development efforts.
 // We can get layout tests up and running, and back fill with real storage
 // somewhat in parallel.
 class MockAppCacheStorage : public AppCacheStorage {
  public:
   explicit MockAppCacheStorage(AppCacheService* service);
   virtual ~MockAppCacheStorage();
 
   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& origin);
   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() {}
 
  private:
@@ skipping 130 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest,
                            StoreExistingGroupExistingCache);
   FRIEND_TEST_ALL_PREFIXES(AppCacheServiceTest, DeleteAppCachesForOrigin);
 
   DISALLOW_COPY_AND_ASSIGN(MockAppCacheStorage);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_MOCK_APPCACHE_STORAGE_H_