This adds the onNetworkChanged event to networkingPrivate

chrome/test/data/extensions/api_test/networking/test.js

Index: chrome/test/data/extensions/api_test/networking/test.js
diff --git a/chrome/test/data/extensions/api_test/networking/test.js b/chrome/test/data/extensions/api_test/networking/test.js
index 5503ced293932998012d9546437436cd5d410326..7520de211369d82fe643a27cf1d5fa1496e16211 100644
--- a/chrome/test/data/extensions/api_test/networking/test.js
+++ b/chrome/test/data/extensions/api_test/networking/test.js
@@ -80,6 +80,42 @@ chrome.test.runTests([
           assertEq("WiFi", result.Type);
         }));
   },
+  function propertiesChangeEvent() {
+    var done = chrome.test.callbackAdded();
+    chrome.networkingPrivate.onNetworkChanged.addListener(
+        function (properties) {
+          assertEq(
+            [
+              {
+                "ConnectionState": "Connected",
+                "GUID": "stub_ethernet",
+                "Name": "eth0",
+                "Type": "Ethernet"
+              },
+              {
+                "ConnectionState": "Connecting",
+                "GUID": "stub_wifi1",
+                "Name": "wifi1",
+                "Type": "WiFi"
+              },
+              {
+                "ConnectionState": "NotConnected",
+                "GUID": "stub_wifi2",
+                "Name": "wifi2_PSK",
+                "Type": "WiFi"
+              },
+              {
+                "ConnectionState": "NotConnected",
+                "GUID": "stub_cellular1",
+                "Name": "cellular1",
+                "Type": "Cellular"
+              }
+            ], properties);
+          done();
+        });
+      chrome.networkingPrivate.startConnect("stub_wifi1",
+                                            callbackPass(function() {}));
+  },
   function startConnect() {
     chrome.networkingPrivate.startConnect("stub_wifi2",
                                           callbackPass(function() {}));