Currently the code for computing style for text control shadow elements lives in render tree. Style is the input for building a render tree and should be computable without having one.
Created attachment 272559 [details] patch
Comment on attachment 272559 [details] patch r=me
Comment on attachment 272559 [details] patch Clearing flags on attachment: 272559 Committed r197401: <http://trac.webkit.org/changeset/197401>
All reviewed patches have been landed. Closing bug.