Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

chrome/browser/download/download_path_reservation_tracker.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 "chrome/browser/download/download_path_reservation_tracker.h"
 
 #include <map>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 162 matching lines @@
   base::FilePath filename = target_path.BaseName();
   bool is_path_writeable = true;
   bool has_conflicts = false;
   bool name_too_long = false;
 
   // Create target_dir if necessary and appropriate. target_dir may be the last
   // directory that the user selected in a FilePicker; if that directory has
   // since been removed, do NOT automatically re-create it. Only automatically
   // create the directory if it is the default Downloads directory or if the
   // caller explicitly requested automatic directory creation.
-  if (!file_util::DirectoryExists(target_dir) &&
+  if (!base::DirectoryExists(target_dir) &&
       (create_directory ||
        (!default_download_path.empty() &&
         (default_download_path == target_dir)))) {
     file_util::CreateDirectory(target_dir);
   }
 
   // Check writability of the suggested path. If we can't write to it, default
   // to the user's "My Documents" directory. We'll prompt them in this case.
-  if (!file_util::PathIsWritable(target_dir)) {
+  if (!base::PathIsWritable(target_dir)) {
     DVLOG(1) << "Unable to write to directory \"" << target_dir.value() << "\"";
     is_path_writeable = false;
     PathService::Get(chrome::DIR_USER_DOCUMENTS, &target_dir);
     target_path = target_dir.Append(filename);
   }
 
   if (is_path_writeable) {
     // Check the limit of file name length if it could be obtained. When the
     // suggested name exceeds the limit, truncate or prompt the user.
     int max_length = file_util::GetMaximumPathComponentLength(target_dir);
@@ skipping 155 matching lines @@
       create_directory,
       conflict_action,
       callback));
 }
 
 // static
 bool DownloadPathReservationTracker::IsPathInUseForTesting(
     const base::FilePath& path) {
   return IsPathInUse(path);
 }