On the first day that the Chrome beta was released, this is what clause 11.1 of the EULA stated:
11.1 You retain copyright and any other rights that you already hold in Content that you submit, post or display on or through the Services. By submitting, posting or displaying the content, you give Google a perpetual, irrevocable, worldwide, royalty-free and non-exclusive licence to reproduce, adapt, modify, translate, publish, publicly perform, publicly display and distribute any Content that you submit, post or display on or through the Services. This licence is for the sole purpose of enabling Google to display, distribute and promote the Services and may be revoked for certain Services as defined in the Additional Terms of those Services.
It was removed 24 hours after it first appeared but I wonder how many actually read it before clicking OK.
Also, if that was Googles intentions, then the facilities were in place to do it and who knows if they are still using them, and what they are keeping records of even now.
And, No I do not have it installed. I don't get paid to test beta products!