Clean up Google Chrome ?

Hi,

I've noticed that after Google Chrome browser updates itself, it seems to leave some old version behind in the locations below. I have between 3 and 5 old Chrome versions in these paths along with most current that i use when running Chrome.

Can CCleaner add this to future versions for cleaning? Or if anyone knows why these old versions are needed ?

On WinXP

C:\Documents and Settings\USERNAME\Local Settings\Application Data\Google\Chrome\Application

On Win7

C:\Users\USERNAME\AppData\Local\Google\Chrome\Application

thanks

Scott

I second this request. Thank you.