plugins/npapi/prebuilt/gwt-dev-plugin/background.html - gwt - Git at Google

 <html>
 <head>
 <script>
   chrome.extension.onConnect.addListener(function(port) {
     // Tell my caller his tabId
     port.postMessage( { name:"tabId", tabId:port.tab.id } );
   });
 </script>
 </head>
 </html>
	<html>
	<head>
	<script>
	chrome.extension.onConnect.addListener(function(port) {
	// Tell my caller his tabId
	port.postMessage( { name:"tabId", tabId:port.tab.id } );
	});
	</script>
	</head>
	</html>