http://www.chromium.org/developers
get the code
http://dev.chromium.org/developers/how-tos/get-the-code
compile
http://dev.chromium.org/developers/how-tos/install-depot-tools
http://code.google.com/p/chromium/wiki/LinuxBuildInstructions
https://launchpad.net/~chromium-daily/+archive/ppa
http://www.cssbakery.com/2010/09/building-chrome-on-64-bit-ubuntu-1004.html
http://www.douban.com/note/124320717/
http://blog.swiftbyte.com/chromium-os/building-chromium-os/
http://virtguru.wordpress.com/2010/10/14/12minutes-installing-ubuntu-10-04-tls-for-regular-chromium-os-compiling-and-hw-test/
http://www.chromium.org/chromium-os/developer-guide