ThisThe below worked for me. It shows how to create your own service that is independent of Safari.
1. Open Automator and choose the Service template
2. Add a Run Shell Script action for a script like `open "http://www.google.com/search?q=$(ruby -rcgi -e 'print CGI.escape $<.read.chomp')"`
3. Save the service and assign it a shortcut from System Preferences
https://superuser.com/questions/369934/mac-os-x-lion-chrome-shortcut-for-search-with-google