Make IndexedDB layout browser tests save incorrect results to a file

content/test/layout_browsertest.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.
 
 #include "base/file_path.h"
 #include "base/scoped_temp_dir.h"
 #include "content/test/content_browser_test.h"
 
 class GURL;
 class LayoutTestHttpServer;
@@ skipping 22 matching lines @@
   // have been used.
   void RunHttpLayoutTest(const std::string& test_case_file_name);
   void AddResourceForLayoutTest(const FilePath& parent_dir,
                                 const FilePath& resource_name);
 
  private:
   void RunLayoutTestInternal(const std::string& test_case_file_name,
                              const GURL& url);
   void WriteModifiedFile(const std::string& test_case_file_name,
                          FilePath* test_path);
+  std::string SaveResults(const std::string& expected,
+                          const std::string& actual);
 
   FilePath our_original_layout_test_dir_;
   FilePath test_parent_dir_;
   FilePath test_case_dir_;
   FilePath our_layout_test_temp_dir_;
   FilePath rebase_result_dir_;
   FilePath rebase_result_chromium_dir_;
   FilePath rebase_result_win_dir_;
   ScopedTempDir scoped_temp_dir_;
   int port_;  // -2 means no port.  -1 means random.
   scoped_ptr<LayoutTestHttpServer> test_http_server_;
 
   DISALLOW_COPY_AND_ASSIGN(InProcessBrowserLayoutTest);
 };