[Commits] [wesnoth/wesnoth] 737916: GUI2: use include guards consistently

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: 737916eaab5f9253793a26d24e687b20515d251c
      https://github.com/wesnoth/wesnoth/commit/737916eaab5f9253793a26d24e687b20515d251c
  Author: Charles Dang <exodia339 at gmail.com>
  Date:   2017-05-09 (Tue, 09 May 2017)

  Changed paths:
    M src/gui/dialogs/drop_down_menu.hpp
    M src/gui/dialogs/loading_screen.hpp
    M src/gui/widgets/chatbox.hpp
    M src/gui/widgets/menu_button.hpp
    M src/gui/widgets/multimenu_button.hpp

  Log Message:
  -----------
  GUI2: use include guards consistently

[ci skip]

Doesn't touch uses of `#pragma once` outside the gui/ directory.