hg: openjfx/8u-dev/rt: 8090185: Ubuntu: switching to fullscreen from primary stage in browser displays grey screen

[chien.yang at oracle.com]

Changeset: 4e612a489cb4
Author:    ckyang
Date:      2016-01-13 16:20 -0800
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/4e612a489cb4

8090185: Ubuntu: switching to fullscreen from primary stage in browser displays grey screen
Reviewed-by: kcr

! modules/graphics/src/main/java/com/sun/prism/es2/ES2SwapChain.java