Fix incorrect rendering of checked menu items on Windows Classic

Modify rendering of checked menu items when using Windows Classic
style to be more native looking.

Changes:
* Checked menu items with no icon are not drawn sunken
* Disabled checked menu items with an icon have a plain background
  instead of a checkerboard pattern same as when enabled
* Check mark is drawn with highlighted text color when selected to
  match text
* Fix check mark offset for disabled unselected checked menu item
  as the entire check mark was drawn shifted (1, 1)
* Fix color of check mark shadow for disabled unselected checked
  menu item as it was same color as the check mark when it should
  be a light color

Task-number: QTBUG-15098
Merge-request: 2513
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@nokia.com>

0 files changed, 0 insertions, 0 deletions