review request: GTK resize issue

[David Hill]

https://bugs.openjdk.java.net/browse/JDK-8088811

webrev: http://cr.openjdk.java.net/~ddhill/8088811/ <http://cr.openjdk.java.net/%7Eddhill/8088811/>

There were two issues addressed here:
    * fixed a boolean check before we call to make the window resizable (order of operations issue)
    * changed the function used to mark the window resizable (to gtk_window_set_resizable())

gtk_window_set_has_resize_grip() is only GTK3, and has a deprecated tag there, so it is odd that it was used.

The test application works properly now, but I need to think about and perform more testing before I push this.

-- 
David Hill<David.Hill at Oracle.com>
Java Embedded Development

"A man's feet should be planted in his country, but his eyes should survey the world."
-- George Santayana (1863 - 1952)