References #10527 [22286].  The menu is still 1px offscreen causing the _autoComplete_mouse.html test to file.  Adjust isVisible method to allow the border to be offscreen as long as the content is visible.
References #10527 [22286].  The menu is still 1px offscreen causing the _autoComplete_mouse.html test to file.  Adjust isVisible method to allow the border to be offscreen as long as the content is visible.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22297 560b804f-0ae3-0310-86f3-f6aa0a117693

kitsonk/delite,Sam-Cummins/delite,harbalk/delite,harbalk/delite,kitsonk/delite,Sam-Cummins/delite