This was a regression caused by r40679

        Reviewed by Dave Hyatt.

        Tested by many many tests.

        * rendering/RenderWidget.cpp:
        (WebCore::RenderWidget::destroy): Only deref the RenderWidget after we
        finish accessing its members.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@40709 268f45cc-cd09-0410-ab3c-d52691b4dbfc