Ugh, no idea why Chrome is doing that all of a sudden. This release has been out for a couple of weeks without issues, and this is now showing up today

If you open up the Chrome downloads tab (Ctrl + J), you can click "Recover malicious file" to allow it to download anyways. I've just done that, and ran the downloaded file through VirusTotal (results here: https://www.virustotal.com/en/file/883ab8fe6cbac98629c9024b0df11561adbcc76b1fae3664ee6e6667b50ad980/analysis/1419970640/) and it's definitely 100% clean.

Thanks for letting us know! We'll see if there's a way to have Google investigate the false positive.