Disk cache: Make sure that the CacheCreator captures the required arguments.

net/disk_cache/cache_creator.cc

 // Copyright (c) 2012 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.
 
 #include "base/file_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/stringprintf.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/backend_impl.h"
 #include "net/disk_cache/cache_util.h"
@@ skipping 20 matching lines @@
   // Creates the backend.
   int Run();
 
  private:
   ~CacheCreator();
 
   void DoCallback(int result);
 
   void OnIOComplete(int result);
 
-  const base::FilePath& path_;
+  const base::FilePath path_;
   bool force_;
   bool retry_;
   int max_bytes_;
   net::CacheType type_;
   uint32 flags_;
   scoped_refptr<base::MessageLoopProxy> thread_;
   disk_cache::Backend** backend_;
   net::CompletionCallback callback_;
   disk_cache::Backend* created_cache_;
   net::NetLog* net_log_;
@@ skipping 103 matching lines @@
     *backend = disk_cache::MemBackendImpl::CreateBackend(max_bytes, net_log);
     return *backend ? net::OK : net::ERR_FAILED;
   }
   DCHECK(thread);
   CacheCreator* creator = new CacheCreator(path, force, max_bytes, type, kNone,
                                            thread, net_log, backend, callback);
   return creator->Run();
 }
 
 }  // namespace disk_cache