hg: openjfx/8/graphics/rt: Fix to RT-31666: Core dump when forcing es2 pipeline on Linux with Intel GPU.

[hang.vo at oracle.com]

Changeset: 55411f1b25b3
Author:    Chien Yang <chien.yang at orcale.com>
Date:      2013-09-04 13:30 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/55411f1b25b3

Fix to RT-31666: Core dump when forcing es2 pipeline on Linux with Intel GPU.
Reviewed-by: David Hill, Kevin Rushiforth and Yao Wang

! modules/graphics/src/main/native-prism-es2/windows/WinGLContext.c
! modules/graphics/src/main/native-prism-es2/x11/X11GLContext.c