hg: openjfx/8u-dev/rt: RT-38218: Gtk: Need unit test for RT-37974

[kevin . rushforth]

Changeset: 7c082d1572e7
Author:    kcr
Date:      2014-08-06 16:59 -0700
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/7c082d1572e7

RT-38218: Gtk: Need unit test for RT-37974

! tests/system/src/test/java/launchertest/Constants.java
! tests/system/src/test/java/launchertest/MainLauncherTest.java
+ tests/system/src/test/java/launchertest/TestHeadlessApp.java