HTML_MESSAGE_BOX: DPI-independent default size

common/html_messagebox.cpp

@@ -2,7 +2,7 @@
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
  * Copyright (C) 2014 Jean-Pierre Charras, jp.charras at wanadoo.fr
- * Copyright (C) 2014 KiCad Developers, see CHANGELOG.TXT for contributors.
+ * Copyright (C) 2014-2018 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -34,6 +34,7 @@ HTML_MESSAGE_BOX::HTML_MESSAGE_BOX( wxWindow* parent, const wxString& aTitle,
 {
     m_htmlWindow->SetLayoutDirection( wxLayout_LeftToRight );
     ListClear();
+    SetSizeInDU( 240, 120 );
     Center();
 }