Reviewers: jlabanca, Description: Fix for issue 4596 (broken layout on tab visibility change in IE6). Changes LayoutPanel to provide an explicit setWidgetVisible() method, which ensures that the layout is properly updated on a visibility change. Also adds a test to catch this particular flavor of failure on IE6.
Please review this at http://gwt-code-reviews.appspot.com/153820 Affected files: M user/src/com/google/gwt/user/client/ui/LayoutPanel.java M user/src/com/google/gwt/user/client/ui/TabLayoutPanel.java M user/test/com/google/gwt/user/client/ui/TabLayoutPanelTest.java -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
