[8u20] Request for approval: 8048265 AWT crashes inside CCombinedSegTable::In called from Java_sun_awt_windows_WDefaultFontCharset_canConvert

[Sergey Bylokhov]

Hello,
This is a direct back port from jdk 9 to jdk 8u20.
The fix will be pushed to 8u, then keyword for 8u20 will be added to the CR.

Bug: https://bugs.openjdk.java.net/browse/JDK-8048265
Webrev can be found at: cr.openjdk.java.net/~serb/8048265/webrev.00
Review: http://mail.openjdk.java.net/pipermail/awt-dev/2014-July/008122.html
jdk9 changeset: http://hg.openjdk.java.net/jdk9/client/jdk/rev/ec5d5682280a

Reviewers: Petr Pchelko, Alexander Zvegintsev, Anthony Petrov.

-- 
Best regards, Sergey.