Fixes a bug in PopupPanel where it can enter an invalid state if it is shown while attached to a panel.
http://gwt-code-reviews.appspot.com/298804/show

Review by: spoon@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7924 8db76d5a-ed1c-0410-87a9-c151d255dfc7
2 files changed