Launch Chrome in kiosk mode, disable the first run and default browser checks, and go to http://www.google.com.

gistfile1.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>KeepAlive</key>
	<true/>
	<key>Label</key>
	<string>com.company.chrome_kiosk</string>
	<key>ProgramArguments</key>
	<array>
		<string>/Applications/Google Chrome.app/Contents/MacOS/Google Chrome</string>
		<string>-cancel-first-run</string>
		<string>-no-default-browser-check</string>
		<string>-kiosk</string>
		<string>http://www.google.com</string>
	</array>
	<key>QueueDirectories</key>
	<array/>
	<key>WatchPaths</key>
	<array/>
</dict>
</plist>