hg: openjfx/8/graphics/rt: RT-23840: Snapshot method needs to be made MT safe

[hang.vo at oracle.com]

Changeset: ea99d38f2c90
Author:    kcr
Date:      2013-11-25 12:55 -0800
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/ea99d38f2c90

RT-23840: Snapshot method needs to be made MT safe
Reviewed-by: anthony

! modules/graphics/src/main/java/com/sun/javafx/tk/TKScene.java
! modules/graphics/src/main/java/com/sun/javafx/tk/quantum/GlassScene.java
! modules/graphics/src/main/java/com/sun/javafx/tk/quantum/ViewScene.java
! modules/graphics/src/main/java/javafx/scene/Scene.java
! modules/graphics/src/test/java/com/sun/javafx/pgstub/StubScene.java