applescript from https://github.com/wallace/google_hangout_workflow

gistfile1.txt

delay 1.5

tell application "System Events"
	set browser_apps to the name of every process whose visible is true

	if "Safari" is in browser_apps then
		tell application "Safari"
			set hangout to URL of current tab of front window
		end tell
	else if "Google Chrome" is in browser_apps then
		tell application "Google Chrome"
			set hangout to URL of active tab of front window
		end tell
	end if
end tell

set the clipboard to hangout