Huge props to the Chromium team for doing this; it's an excellent precedent.

SSLv3 is broken, and the only reason it's been so well-supported is that the browsers were unwilling to break web servers; the operators of those servers can't be counted on to fix them, and users direct their ire at the browser vendors. But apparently there's a red line across which the browsers won't make up for broken server configurations, and POODLE crossed it.