If it was the installer only. They are trying to get from you what they can.
- When you type URLs or queries in the address bar, the letters you type are sent to Google so the Suggest feature can automatically recommend terms or URLs you may be looking for. If you choose to share usage statistics with Google and you accept a suggested query or URL, Google Chrome will send that information to Google as well. You can disable this feature as explained here.
- If you navigate to a URL that does not exist, Google Chrome may send the URL to Google so we can help you find the URL you were looking for. You can disable this feature as explained here.
Yeah, you can disable it. Who does? And even so, the installer might have gathered enough information from you to feed google's database a good initial profile (this is speculation, I don't know if it does; don't have Windows).
All pretty nasty, and reminds me of Microsoft's "default policy". The default for those settings should be off for a browser which isn't as well spyware out of the box. I.e. opt-in instead of opt-out.
See also Nicolas Carr's take on the Google Chrome Browser on his blog.