I think Google knows the success of Chrome depends on the plugin community. The open support of AdBlock is a signal that Google will prioritize user interests over everything else.
Seems like a smart move to me -- getting Chrome out is strategically important -- browser diversification mitigates bigger risks, such as MS pushing a default ad blocker through ie; and helps them raise the bar on all browsers (esp. js rendering) to make their web apps run better.
Well, I would think it's safe to assume that most people who have Google Chrome are trailblazers in the online world and probably don't click on a lot of ads and make them money anyway. Also, looking at the browser statistics (http://en.wikipedia.org/wiki/Usage_share_of_web_browsers) Google Chrome is just about 0.74% of the browser market.
Right now it's important for them to get Chrome on more computers. It will be interesting to see if this strategy changes when Chrome starts getting more traction.
Seems like a smart move to me -- getting Chrome out is strategically important -- browser diversification mitigates bigger risks, such as MS pushing a default ad blocker through ie; and helps them raise the bar on all browsers (esp. js rendering) to make their web apps run better.