[9] Review request for 8158411 Regression on Swingmark on 8u102 b03 comparing 8u102 b02 on several configs on win32

[Alexandr Scherbatiy]

Hello,
Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-8158411
  webrev: http://cr.openjdk.java.net/~alexsch/8158411/webrev.00

  This is a regression from the fix JDK-8076545 Text size is twice 
bigger under Windows L&F on Win 8.1 with HiDPI display.

  The system dpi is read every time when it is required. The fix reads 
the system dpi only once.
  Before the current fix SwingMark Sub-Menus test called 50 times has 
score 37021. After the fix the score is 33890. Which gives improvement 
(37021 - 33890) * 100 / 37021 = 8.45%.

 Thanks,
 Alexandr.