1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5chrome.runtime.onConnect.addListener(function(port) { 6 port.onMessage.addListener(function(msg) { 7 port.postMessage({counter: msg.counter+1}); 8 }); 9}); 10 11chrome.extension.onRequest.addListener( 12 function(request, sender, sendResponse) { 13 sendResponse({counter: request.counter+1}); 14 }); 15