hg: openjfx/8u-dev/rt: 8210219: GlassClipboard.cpp fails to compile with newer versions of VS2017

[kevin.rushforth at oracle.com]

Changeset: 7e4af075cb6c
Author:    kcr
Date:      2018-08-31 04:53 -0700
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/7e4af075cb6c

8210219: GlassClipboard.cpp fails to compile with newer versions of VS2017
Reviewed-by: arajkumar

! modules/graphics/src/main/native-glass/win/GlassClipboard.cpp