Change base/file_utils.h includes to base/files/file_utils.h in net/

net/disk_cache/simple/simple_version_upgrade_unittest.cc

 // Copyright 2013 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 "net/disk_cache/simple/simple_version_upgrade.h"
 
 #include "base/basictypes.h"
-#include "base/file_util.h"
 #include "base/files/file_path.h"
+#include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/simple/simple_backend_version.h"
 #include "net/disk_cache/simple/simple_entry_format_history.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // The migration process relies on ability to rename newly created files, which
 // could be problematic on Windows XP.
@@ skipping 111 matching lines @@
       EXPECT_TRUE(base::ReadFileToString(cache_path.AppendASCII(file_name),
                                          &real_contents));
       EXPECT_EQ(expected_contents, real_contents);
     }
   }
 }
 
 }  // namespace
 
 #endif  // defined(OS_POSIX)