I asked Paul Irish, Chome Developer relations:
@paul_irish re http://bit.ly/kOZ7Lp - MSFT wrong? Security risk in Chrome/FF with WebGL?
http://twitter.com/#!/paul_irish/status/81492337108328448 @AlexGraul i think chrome's record in pwn2own is a good indicator of our commitment to security while delivering great features. :)