Move path functions from file_util to FilePath object.

ui/shell_dialogs/select_file_dialog_win.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 "ui/shell_dialogs/select_file_dialog_win.h"
 
 #include <windows.h>
 #include <commdlg.h>
 #include <shlobj.h>
 
@@ skipping 68 matching lines @@
     return metro_get_save_file_name(ofn) == TRUE;
   } else {
     return GetSaveFileName(ofn) == TRUE;
   }
 }
 
 // Distinguish directories from regular files.
 bool IsDirectory(const base::FilePath& path) {
   base::PlatformFileInfo file_info;
   return file_util::GetFileInfo(path, &file_info) ?
-      file_info.is_directory : file_util::EndsWithSeparator(path);
+      file_info.is_directory : path.EndsWithSeparator();
 }
 
 // Get the file type description from the registry. This will be "Text Document"
 // for .txt files, "JPEG Image" for .jpg files, etc. If the registry doesn't
 // have an entry for the file type, we return false, true if the description was
 // found. 'file_ext' must be in form ".txt".
 static bool GetRegistryDescriptionFromExtension(const std::wstring& file_ext,
                                                 std::wstring* reg_description) {
   DCHECK(reg_description);
   base::win::RegKey reg_ext(HKEY_CLASSES_ROOT, file_ext.c_str(), KEY_READ);
@@ skipping 814 matching lines @@
   return return_value;
 }
 
 SelectFileDialog* CreateWinSelectFileDialog(
     SelectFileDialog::Listener* listener,
     SelectFilePolicy* policy) {
   return new SelectFileDialogImpl(listener, policy);
 }
 
 }  // namespace ui