Safari 5 has gotten a new feature: The Reader. It shows a simplified version of an article page with just the article itself (and not all the clutter around). It also merges multiple pages (if the article is split across multiple pages) to a single one.
This is an extremely useful feature and I would like to port it over to Chrome.
I was searching for Readers code in the WebKit trunk (e.g. http://svn.webkit.org/repository/webkit/trunk/) but I couldn’t find it.
Any hint where I can find it?
UI-level features are generally part of the Safari codebase, which as Ivo said is not open-source. The WebKit nightly builds aren’t open-source either, they are essentially versions of Safari that use an embedded, trunk copy of the engine instead of the one that shipped with the OS.