As stated by others this isn't possible for obvious reasons already mentioned.
Although since it is a local site why don't you just create a Chrome shortcut for it in fullscreen:
Create a shortcut to Chrome:
"C:\Users\techiecorner\AppData\Local\Google\Chrome\Application\chrome.exe" --kiosk http://www.example.com
http://www.techiecorner.com/1941/how-to-auto-start-chrome-in-full-screen-mode-f11-everytime/
UDPATE
By now (HTML5) there is a proposal for a full screen API. To use this you could do something like:
// feature detection
if (typeof document.cancelFullScreen != 'undefined' && document.fullScreenEnabled === true) {
// mozilla proposal
element.requestFullScreen();
document.cancelFullScreen();
// Webkit (works in Safari and Chrome Canary)
element.webkitRequestFullScreen();
document.webkitCancelFullScreen();
// Firefox (works in nightly)
element.mozRequestFullScreen();
document.mozCancelFullScreen();
// W3C Proposal
element.requestFullscreen();
document.exitFullscreen();
}
For more information see the official specs.