To the paranoids above
Your browser has been able to do this all along thanks to the flash plugin (and others), the functionality just moved from plugin to browser.
So you cry you're going to uninstall chrome, where will you turn to? Check that other browser to make sure.
So you cry exploit in 3 2 1... errrr if they do any exploit in your browser, they can access your hardware anyway, just made it a tiny bit easier.
Do you know *all* browsers can read/write your disk? Doesn' *that* scare you? And beware of H20, it's a very dangerous chemical. Etc....