After week long waiting, and headache i finally managed to install chrome os in ubuntu.
Actually i installed chromiumos-aura window manager to Ubuntu.
I just followed this GITHub repo: https://github.com/dz0ny/lightdm-login-chromeos for installation and error solutions.
I faced an error while launching of chrome os as there was some strange error:
root window unavailible (maybe another wm is running?)
[8433:8433:0707/140237:FATAL:browser_main_loop.cc(142)] Running without the SUID sandbox! Seehttps://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment for more information on