The default value of shape-inside should be auto in the current version of the CSS Shapes spec.
Created attachment 217823 [details] Initial patch
Is it actually updated in the spec as well? (http://dev.w3.org/csswg/css-shapes-2/#shape-inside-property) The patch looks okay to me.
Comment on attachment 217823 [details] Initial patch Looks good.
Comment on attachment 217823 [details] Initial patch Clearing flags on attachment: 217823 Committed r159822: <http://trac.webkit.org/changeset/159822>
All reviewed patches have been landed. Closing bug.