Few months ago I posted an article on how to download offline installer of Google Chrome browser. The links we gathered are by analyzing the Google Chrome Online Installer logs and they are not officially supported by Google.
Today Google understood the importance of offline installers for Google Chrome and provided an official link to download the latest version. That is a very happy news for many people who don't have Internet access while installation. Thank you Google.
If you are looking for a portable application of Google Chrome read the post Install Google Chrome On Computers Not Connected To Internet Using Standalone Installer and Portable App