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

base/files/file_path_watcher_win.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.
 
 #include "base/files/file_path_watcher.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 182 matching lines @@
   *handle = FindFirstChangeNotification(
       dir.value().c_str(),
       recursive,
       FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE |
       FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_DIR_NAME |
       FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_SECURITY);
   if (*handle != INVALID_HANDLE_VALUE) {
     // Make sure the handle we got points to an existing directory. It seems
     // that windows sometimes hands out watches to directories that are
     // about to go away, but doesn't sent notifications if that happens.
-    if (!file_util::DirectoryExists(dir)) {
+    if (!DirectoryExists(dir)) {
       FindCloseChangeNotification(*handle);
       *handle = INVALID_HANDLE_VALUE;
     }
     return true;
   }
 
   // If FindFirstChangeNotification failed because the target directory
   // doesn't exist, access is denied (happens if the file is already gone but
   // there are still handles open), or the target is not a directory, try the
   // immediate parent directory instead.
@@ skipping 69 matching lines @@
   handle_ = INVALID_HANDLE_VALUE;
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }
 
 }  // namespace base