dropdown is down it can crash. This makes sure the dropdown is rolled up and unregistered with the rollup listener b=33149 git-svn-id: svn://10.0.0.236/trunk@64372 18797224-902f-48f8-a5cc-f745e15eee43
dropdown is down it can crash. This makes sure the dropdown is rolled up and unregistered with the rollup listener b=33149 git-svn-id: svn://10.0.0.236/trunk@64372 18797224-902f-48f8-a5cc-f745e15eee43