Fix for the table layout test that failed because of a change in how innerText worke...

	Fix for the table layout test that failed because of a change in how innerText worked.  We need to do
	updateLayout now when using innerText, since the method has been changed to use line boxes in the render tree
	that might otherwise be out of date.

        Reviewed by kocienda

        * khtml/html/html_elementimpl.cpp:
        (HTMLElementImpl::innerText):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@6982 268f45cc-cd09-0410-ab3c-d52691b4dbfc