Use setProperties for IP Config.

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 efa8dc588204de440ba0f0e58c235ba89e5d5578..6af97db5dfc32e475606f5f62bba9c3c896ba37b 100644
--- a/chrome/test/data/extensions/api_test/networking/test.js
+++ b/chrome/test/data/extensions/api_test/networking/test.js
@@ -285,14 +285,19 @@ var availableTests = [
         assertEq({ "Connectable": true,
                    "ConnectionState": "Connected",
                    "GUID": "stub_wifi1_guid",
-                   "MacAddress": "00:11:22:AA:BB:CC",
                    "IPConfigs": [{
                      "Gateway": "0.0.0.1",
                      "IPAddress": "0.0.0.0",
                      "RoutingPrefix": 0,
                      "Type": "IPv4"
                    }],
+                   "IPConfigType": "Static",
+                   "MacAddress": "00:11:22:AA:BB:CC",
                    "Name": "wifi1",
+                   "StaticIPConfig": {
+                     "IPAddress": "1.2.3.4",
+                     "Type": "IPv4"
+                   },
                    "Type": "WiFi",
                    "WiFi": {
                      "Frequency": 2400,
@@ -384,6 +389,10 @@ var availableTests = [
             Priority: 1,
             WiFi: {
               AutoConnect: true
+            },
+            IPConfigType: 'Static',

[pneubeck (no reviews), 2014/12/05 09:47:46]

should this have been 'DHCP' to test that case also?

[stevenjb, 2015/01/08 00:44:39]

The above tests getting, this tests setting. The Static case seems more
interesting than the dynamic case. (We don't try to be exhaustive here. Someday
maybe.)

+            StaticIPConfig: {
+              IPAddress: '1.2.3.4'
             }
           };
           chrome.networkingPrivate.setProperties(
@@ -393,13 +402,16 @@ var availableTests = [
                 chrome.networkingPrivate.getProperties(
                     network_guid,
                     callbackPass(function(result) {
+                      // Ensure that the GUID doesn't change.
+                      assertEq(network_guid, result.GUID);
                       // Ensure that the properties were set.
                       assertEq(1, result['Priority']);
                       assertTrue('WiFi' in result);
                       assertTrue('AutoConnect' in result['WiFi']);
                       assertEq(true, result['WiFi']['AutoConnect']);
-                      // Ensure that the GUID doesn't change.
-                      assertEq(network_guid, result.GUID);
+                      assertTrue('StaticIPConfig' in result);
+                      assertEq('1.2.3.4',
+                               result['StaticIPConfig']['IPAddress']);
                       done();
                     }));
               }));
@@ -425,7 +437,6 @@ var availableTests = [
                 chrome.networkingPrivate.getProperties(
                     network_guid,
                     callbackPass(function(result) {
-                      console.log('Result: ' + JSON.stringify(result));
                       // Ensure that the properties were set.
                       assertEq(1, result['Priority']);
                       assertTrue('VPN' in result);