Make public APIs being public for frameline_stack - Since the functions prefixed with a underline '_' is supposed a private, we should make all public function not prefixed with a underline. - Remove all prefixed underline from type name of public methods for frameline_stack.

// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
// vim: sw=4:ts=8:sts=4
#ifndef __X_SUPP_H_
#define __X_SUPP_H_

#include <X11/Xlib.h>

typedef Window MB_WINDOW;
typedef Display *MB_DISPLAY;

#endif