Rename a bunch of Mojo Application stuff to reference Services.

services/file/user_id_map.h

 // Copyright 2016 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.
 
 #ifndef SERVICES_FILE_USER_ID_MAP_H_
 #define SERVICES_FILE_USER_ID_MAP_H_
 
 #include <string>
 #include "base/files/file_path.h"
 
 namespace file {
 
 // These methods are called from BrowserContext::Initialize() to associate
-// the BrowserContext's shell user-id with its user directory.
-void AssociateShellUserIdWithUserDir(const std::string& user_id,
+// the BrowserContext's Service user-id with its user directory.
+void AssociateServiceUserIdWithUserDir(const std::string& user_id,
                                      const base::FilePath& user_dir);
-void ForgetShellUserIdUserDirAssociation(const std::string& user_id);
+void ForgetServiceUserIdUserDirAssociation(const std::string& user_id);
 
 base::FilePath GetUserDirForUserId(const std::string& user_id);
 
 }  // namespace file
 
 #endif  // SERVICES_FILE_USER_ID_MAP_H_