Disk cache: Reference CL for the implementation of file format version 3.

net/disk_cache/disk_cache_test_util.h

 // 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.
 
 #ifndef NET_DISK_CACHE_DISK_CACHE_TEST_UTIL_H_
 #define NET_DISK_CACHE_DISK_CACHE_TEST_UTIL_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/message_loop.h"
 #include "base/timer.h"
 #include "base/tuple.h"
+#include "net/base/completion_callback.h"
 #include "build/build_config.h"
 
 // Re-creates a given test file inside the cache test folder.
 bool CreateCacheTestFile(const base::FilePath& name);
 
 // Deletes all file son the cache.
 bool DeleteCache(const base::FilePath& path);
 
 // Fills buffer with random values (may contain nulls unless no_nulls is true).
 void CacheTestFillBuffer(char* buffer, size_t len, bool no_nulls);
@@ skipping 62 matching lines @@
  public:
   // Creates a new CallbackTest object. When the callback is called, it will
   // update |helper|. If |reuse| is false and a callback is called more than
   // once, or if |reuse| is true and a callback is called more than twice, an
   // error will be reported to |helper|.
   CallbackTest(MessageLoopHelper* helper, bool reuse);
   ~CallbackTest();
 
   void Run(int result);
 
+  const net::CompletionCallback& callback() const { return callback_; }
+
   int last_result() const { return last_result_; }
 
  private:
+  net::CompletionCallback callback_;
   MessageLoopHelper* helper_;
   int reuse_;
   int last_result_;
   DISALLOW_COPY_AND_ASSIGN(CallbackTest);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_UTIL_H_