Flock has announced a complete redesign of its browser, originally based on Mozilla Firefox. The new one is based on Google's Chromium platform (the open-source project behind Google Chrome), and like Chrome, places a great deal of emphasis on speed. Of course Flock also places a great deal on what it's already known for - social media activity from the browser. "Social isn't bleeding edge any longer-it's a game-changing, mass market phenomenon,