Board Thread:General Discussion/@comment-11842624-20141111200749/@comment-5518342-20141111233515

That is the old site for the Wikia source code. Wikia source code repository has been moved to GitHub: https://github.com/Wikia

Here is a link to the file you where looking for: https://github.com/Wikia/app/blob/dev/extensions/wikia/TabView/TabView.php