Because nothing ever reads from it!
It would also be nice if MiniBrowser had a maximumProcessCount=1 mode; frequently useful for debugging things where having two pages in one process is important.
Huh, I see no indication that there's a process cap by default. I thought it was 20 or some such?
Created attachment 234581 [details]
Comment on attachment 234581 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=234581&action=review
> + _context->setMaximumNumberOfProcesses(configuration.maximumProcessCount);
Everywhere else in this method we use the instance variable _configuration, not the parameter.