| // Copyright 2022 The Chromium Authors | |
| // Use of this source code is governed by a BSD-style license that can be | |
| // found in the LICENSE file. | |
| #include "components/user_notes/interfaces/user_notes_ui.h" | |
| namespace user_notes { | |
| // UserNotesUI must implement the user data key for its subclasses, to ensure | |
| // their instances can be retrieved in an implementation-agnostic way. | |
| const int UserNotesUI::kUserDataKey; | |
| } // namespace user_notes |