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>
 
 #include "base/gtest_prod_util.h"
 #include "base/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/task.h"
 #include "webkit/appcache/appcache.h"
 #include "webkit/appcache/appcache_disk_cache.h"
 #include "webkit/appcache/appcache_group.h"
 #include "webkit/appcache/appcache_storage.h"
 
+namespace browsing_data_remover_test {
+void AddGroupAndCache(ChromeAppCacheService* appcache_service,
+                      const GURL& manifest_url);
+}
+
 namespace appcache {
 
 // 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();
@@ skipping 147 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest,
                            FindMainResponseWithMultipleCandidates);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest, LoadCache_FarHit);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest, LoadGroupAndCache_FarHit);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest, MakeGroupObsolete);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest, StoreNewGroup);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest, StoreExistingGroup);
   FRIEND_TEST_ALL_PREFIXES(MockAppCacheStorageTest,
                            StoreExistingGroupExistingCache);
   FRIEND_TEST_ALL_PREFIXES(AppCacheServiceTest, DeleteAppCachesForOrigin);
+  friend void browsing_data_remover_test::AddGroupAndCache(
+      ChromeAppCacheService* appcache_service, const GURL& manifest_url);
 
   DISALLOW_COPY_AND_ASSIGN(MockAppCacheStorage);
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_MOCK_APPCACHE_STORAGE_H_