This is an icon for Chromium loosely done in the elementary style. The icon itself looks a little similar to the one for Noise, but I chose the colour because it complements the pale blue of the Chromium logo.
To install, put it in /usr/share/icons/elementary/apps/*/
eg. 64, 48, 32... etc.
Restart Plank and Slingshot
edit:cleaned it up a little bit