I think SBScriptingBridge and a little python would do the trick Here's a little code to get you started:
from Foundation import *
from ScriptingBridge import *
#http://www.mugginsoft.com/html/kosmictask/ScriptingBridgeDox/Google/Google-Chrome/OS-X-10.7/Google-Chrome-19.0.1084.56/html/_google-_chrome_8h_source.html
chrome = SBApplication.applicationWithBundleIdentifier_("com.google.chrome")
newWindow = chrome.classForScriptingClass_("window").alloc().init()
chrome.windows().addObject_(newWindow)
firstTab = newWindow.tabs().objectAtIndex_(0)
firstTab.setURL_("http://www.alfredforum.com")
newTab = chrome.classForScriptingClass_("tab").alloc().init()
newWindow.tabs().addObject_(newTab)
newTab.setURL_("http://www.google.com")