Offline Installer for Google Chrome Web BrowserThe Google Chrome Installer doesn't contain the software package. The browser software is downloaded when you run the installer. Google probably does this to avoid Aw, Snap moments during installation and save on support. However, if you need to install the browser on multiple machines, the installers will be downloading same files again.
Google let's you download a standalone installer to make installing Chrome simple. You can access the installer here: http://www.google.com/chrome/eula.html?standalone=1
If you do not have authorizations to install software, you can get a portable version here: http://portableapps.com/apps/internet/google_chrome_portable