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

net/disk_cache/disk_cache_test_util.h

Index: net/disk_cache/disk_cache_test_util.h
===================================================================
--- net/disk_cache/disk_cache_test_util.h	(revision 199883)
+++ net/disk_cache/disk_cache_test_util.h	(working copy)
@@ -11,6 +11,7 @@
 #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.
@@ -93,9 +94,12 @@
 
   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_;