A presentation given by Jói Sigurðsson on Chromium's src/components layer, a.k.a. Browser Components. What the motivation for this layer was, how to write new features as components, and how to extract features from src/chrome into components.
More info at http://www.chromium.org/developers/design-documents/browser-components and http://www.chromium.org/developers/design-documents/browser-components/cookbook
