Change base/file_utils.h includes to base/files/file_utils.h in chrome/, part 2.

chrome/installer/tools/validate_installation_main.cc

 // Copyright (c) 2011 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.
 
 // A command-line tool that inspects the current system, displaying information
 // about installed products.  Violations are dumped to stderr.  The process
 // exit code is 0 if there are no violations, or 1 otherwise.
 
 #include <cstdio>
 #include <cstdlib>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
-#include "base/file_util.h"
+#include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "chrome/installer/util/installation_validator.h"
 
 using installer::InstallationValidator;
 
 namespace {
 
 // A helper class that initializes logging and installs a log message handler to
 // direct ERROR messages to stderr.  Only one instance of this class may be live
@@ skipping 155 matching lines @@
       fprintf(stream, "%s installations%s: %s\n", LevelToString(system_level),
               (is_valid ? "" : " (with errors)"),
               InstallationTypeToString(type).c_str());
     }
     if (!is_valid)
       result = EXIT_FAILURE;
   }
 
   return result;
 }