This is going to be used by inline layout to check where the next line is supposed to be.
Created attachment 372192 [details]
Created attachment 372193 [details]
Created attachment 372198 [details]
Comment on attachment 372198 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=372198&action=review
> + void moveBy(LayoutSize);
IntPoint calls this move. Generally it would be good to match existing interfaces unless there is a good reason not to.
Committed r246482: <https://trac.webkit.org/changeset/246482>