RFR: 8295007: javax/swing/JRadioButton/4314194/bug4314194.java fails in mach5 for WIndowLookAndFeel

[Prasanta Sadhukhan]

javax/swing/JRadioButton/4314194/bug4314194.java correct color pixels pixel % varies between 30% for Metal to about 20% for Nimbus to about 19% for Windows L&F. But Nimbus in linux correct color pixel % falls to about 14%
so adjusted % tolerance check to 10
Also, JDK-8075916 is fixed for NimbusL&F but same issue is present for GTK L&F which is to be addressed separately as JDK-8295006 so problemlisted for now

-------------

Commit messages:
 - 8295007: javax/swing/JRadioButton/4314194/bug4314194.java fails in mach5 for WIndowLookAndFeel

Changes: https://git.openjdk.org/jdk/pull/10618/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10618&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295007
  Stats: 3 lines in 2 files changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10618.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10618/head:pull/10618

PR: https://git.openjdk.org/jdk/pull/10618