Removed #include of wingdi.h and windef.h from winuser.h (and resolved
the resulting compilation failures).

diff --git a/windows/keyboard.c b/windows/keyboard.c
index ee6b2ad..2c9ce44 100644
--- a/windows/keyboard.c
+++ b/windows/keyboard.c
@@ -13,6 +13,8 @@
 #include <string.h>
 #include <ctype.h>
 
+#include "windef.h"
+#include "wingdi.h"
 #include "winuser.h"
 #include "wine/keyboard16.h"
 #include "win.h"