I got this below error while using Selenium RC for Google Chrome
you are using unsupported command-line flag: --disable-web-security. Stability and security will suffer. I don't know whats the issue with chrome.
In feb 2013, someone (expert user/dev "PhistucK"; 1498 Posts as of 01/2014) said on the chrome-discuss gougle-group:
No, it [the notification] cannot be switched off. You can compile Chromium by yourself and remove the code that shows it.