[9] Review request for 8163193 Metal L&F gradient is lighter on HiDPI display after the fix JDK-8143064

[Alexandr Scherbatiy]

Hello,
Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8163193
  webrev: http://cr.openjdk.java.net/~alexsch/8163193/webrev.00

  This is a regression from the fix JDK-8143064 Icons are not properly 
rendered with Windows L&F on HiDPI display.
  The graphics for VolatileImage is already scaled on HiDPI displays 
and should not be scaled one more time.

 Thanks,
 Alexandr.