hg: openjfx/8/graphics/rt: Fix RT-32846: Canvas clipping code leaves a texture locked

[hang.vo at oracle.com]

Changeset: fa5f0c0d5e71
Author:    flar <James.Graham at oracle.com>
Date:      2013-09-11 13:28 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/fa5f0c0d5e71

Fix RT-32846: Canvas clipping code leaves a texture locked
Reviewed by: kcr, ckyang

! modules/graphics/src/main/java/com/sun/javafx/sg/prism/NGCanvas.java