Mark opener extension port as opened after creation

chrome/test/data/extensions/api_test/messaging/connect/page.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 JSON.parse = function() {
   return "JSON.parse clobbered by content script.";
 };
 
 JSON.stringify = function() {
   return "JSON.stringify clobbered by content script.";
@@ skipping 22 matching lines @@
       testSendMessageFromFrame();
     } else if (msg.testSendMessageToFrame) {
       port.postMessage('from_main');
     } else if (msg.testDisconnect) {
       port.disconnect();
     } else if (msg.testConnectChildFrameAndNavigateSetup) {
       chrome.runtime.onConnect.removeListener(onConnect);
       chrome.test.assertFalse(chrome.runtime.onConnect.hasListeners());
       testConnectChildFrameAndNavigateSetup();
     } else if (msg.testDisconnectOnClose) {
-      window.location = "about:blank";
+      chrome.runtime.connect().onMessage.addListener(function(msg) {
+        chrome.test.assertEq('unloadTabContent', msg);
+        window.location = 'about:blank';
+      });
     } else if (msg.testPortName) {
       port.postMessage({portName:port.name});
     } else if (msg.testSendMessageFromTabError) {
       testSendMessageFromTabError();
     } else if (msg.testConnectFromTabError) {
       testConnectFromTabError();
     }
   });
 });
 
@@ skipping 58 matching lines @@
     var success = (chrome.runtime.lastError ? true : false);
     chrome.runtime.sendMessage({success: success});
   });
 }
 
 // For test sendMessage.
 chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
   chrome.test.assertEq({id: chrome.runtime.id}, sender);
   sendResponse({success: (request.step2 == 1)});
 });