Fix a couple of bugs relating to sending Tab info with chrome.runtime.connect and

chrome/test/data/extensions/platform_apps/messaging/app2/background.js

Index: chrome/test/data/extensions/platform_apps/messaging/app2/background.js
diff --git a/chrome/test/data/extensions/platform_apps/messaging/app2/background.js b/chrome/test/data/extensions/platform_apps/messaging/app2/background.js
index 3e5d2c053fc5af417b2d138c7543820484229328..2de9fb635c455f54859dfc45513265eaeb26ee1b 100644
--- a/chrome/test/data/extensions/platform_apps/messaging/app2/background.js
+++ b/chrome/test/data/extensions/platform_apps/messaging/app2/background.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+var otherId = 'gopljlinldkejbanpggpndnjgokncaej';
+
 chrome.runtime.onConnectExternal.addListener(function(port) {
   port.onMessage.addListener(function(msg) {
     if (msg == 'ok_to_disconnect') {
@@ -13,6 +15,7 @@ chrome.runtime.onConnectExternal.addListener(function(port) {
 });
 
 chrome.runtime.onMessageExternal.addListener(function(msg, sender, callback) {
+  chrome.test.assertEq({id: otherId}, sender);
   if (msg == 'hello')
     callback('hello_response');
   else