Correction - Blink is Chrome's layout engine (not Chromium)
The article says "Or dump its browser engine for Chromium, the open-source engine of Google’s browser". This is incorrect.
Chromium is the open-source *browser* of which Chrome is a slight fork. The rendering engine which Chrome and Chromium both use is called "blink" (http://en.wikipedia.org/wiki/Blink_(layout_engine)) - this is the equivalent to Trident (http://en.wikipedia.org/wiki/Trident_(layout_engine)) in Internet Explorer.