change proxy settings for Chrome and not for entire operating system

How can I change proxy settings for Google Chrome without changing the proxy settings for entire operating system? I know that I can go to Network in System preferences, but that changes proxy settings globally.

Is is possible to do it just for Chrome? Firefox for example doesn't require changing global proxy settings.

EDIT: I am open for dirty hacks too :D

Solution 1:

You have to pass the proxy argument to Chrome on the command line. Run something like:

open -a "Google Chrome" --args --proxy-server=http://my-proxy.com

Solution 2:

You can set proxies per-profile using the extension Proxy SwitchyOmega. This is a very popular extension, however you should consider the risks of trusting this (or any) extension that can modify your browser settings, page content, etc.