Fix test failure on chrome when "emulate touch events" is turned on.   The mouseup event has to bubble because _HasDropDown sets a mouseup listener on the document.  Refs #16473.
Fix test failure on chrome when "emulate touch events" is turned on.   The mouseup event has to bubble because _HasDropDown sets a mouseup listener on the document.  Refs #16473.


git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@30799 560b804f-0ae3-0310-86f3-f6aa0a117693

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