The projects in this directory were created before Chrome had proper USB HID support.
But as of Chrome 39.0.2140.0, Chrome supports USB HID devices like blink(1) really easily!
Check it out here: https://github.com/GoogleChrome/chrome-app-samples/tree/master/samples/blink1
or in the Chrome Web Store: https://chrome.google.com/webstore/detail/blink1/kcpjgiicabigbjejdjnkflkdkjknkdch