[CacheStorage] Fix ownership of doomed cache as it's cleaned up

content/browser/cache_storage/cache_storage.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_CACHE_STORAGE_CACHE_STORAGE_H_
 #define CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 148 matching lines @@
                     const BoolAndErrorCallback& callback);
 
   // The DeleteCache callbacks are below.
   void DeleteCacheImpl(const std::string& cache_name,
                        const BoolAndErrorCallback& callback);
   void DeleteCacheDidWriteIndex(
       const std::string& cache_name,
       const StringVector& original_ordered_cache_names,
       const BoolAndErrorCallback& callback,
       bool success);
-  void DeleteCacheFinalize(std::unique_ptr<CacheStorageCache> doomed_cache);
-  void DeleteCacheDidGetSize(std::unique_ptr<CacheStorageCache> cache,
+  void DeleteCacheFinalize(CacheStorageCache* doomed_cache);
+  void DeleteCacheDidGetSize(CacheStorageCache* doomed_cache,
                              int64_t cache_size);
   void DeleteCacheDidCleanUp(bool success);
 
   // The EnumerateCache callbacks are below.
   void EnumerateCachesImpl(const StringsCallback& callback);
 
   // The MatchCache callbacks are below.
   void MatchCacheImpl(const std::string& cache_name,
                       std::unique_ptr<ServiceWorkerFetchRequest> request,
                       const CacheStorageCacheQueryParams& match_params,
@@ skipping 63 matching lines @@
   GURL origin_;
 
   base::WeakPtrFactory<CacheStorage> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CacheStorage);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_H_