Supported Google Autocomplete Clients

Possible options are chrome, chrome-omni, safari, firefox, psy-ab, toolbar, and youtube.

chrome-omni comes from chrome omnibox - address bar in chrome.

psy-ab is used in when google is opened in google chrome.

safari is used in when google is opened in safari.

firefox is used in when google is opened in firefox.

youtube origin unknown. Returns JSONP.

toolbar origin unknown. Returns XML.