Anyway, if you run Ubuntu 10.10 or 11.04 then you could try the latest beta which is the version 11 because this beta brings a lot of changes such as HTML5 speech to text Recognition, faster web page rendering, a new icon for the browser, better use of your GPU thus reducing a lot of CPU which makes it more faster and takes less system resources... are just a few to mention.
Open your terminal and issue the below command to install Chrome 11beta in Ubuntu...
sudo echo “deb http://dl.google.com/linux/deb/ stable non-free main” | sudo tee -a /etc/apt/sources.list
wget -q -O – https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
sudo apt-get install google-chrome-beta