Move PathExists to base namespace.

chromeos/chromeos_test_utils.cc

 // 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 "chromeos/chromeos_test_utils.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 
 namespace chromeos {
 namespace test_utils {
 
 bool GetTestDataPath(const std::string& component,
                      const std::string& filename,
                      base::FilePath* data_dir) {
   base::FilePath path;
   if (!PathService::Get(base::DIR_SOURCE_ROOT, &path))
     return false;
   path = path.Append(FILE_PATH_LITERAL("chromeos"));
   path = path.Append(FILE_PATH_LITERAL("test"));
   path = path.Append(FILE_PATH_LITERAL("data"));
-  if (!file_util::PathExists(path))  // We don't want to create this.
+  if (!base::PathExists(path))  // We don't want to create this.
     return false;
   DCHECK(data_dir);
   path = path.Append(component);
   *data_dir = path.Append(filename);
   return true;
 }
 
 }  // namespace test_utils
 }  // namespace chromeos