Add getGlobalPolicy to networkingPrivate API.

chrome/test/data/extensions/api_test/networking_private/chromeos/test.js

 // Copyright (c) 2013 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.
 
 // The expectations in this test for the Chrome OS implementation. See
 // networking_private_chromeos_apitest.cc for more info.
 
 var callbackPass = chrome.test.callbackPass;
 var callbackFail = chrome.test.callbackFail;
 var assertTrue = chrome.test.assertTrue;
@@ skipping 855 matching lines @@
                       kCellularGuid, newPin, kDefaultPuk,
                       callbackPass(function() {
                         // Set state with the new PIN, expect success.
                         var simState = {requirePin: true, currentPin: newPin};
                         chrome.networkingPrivate.setCellularSimState(
                             kCellularGuid, simState, networkCallbackPass());
                       }));
                 }));
           }));
     })));
-  }
+  },
+  function getGlobalPolicy() {
+    chrome.networkingPrivate.getGlobalPolicy(callbackPass(function(result) {
+      assertEq({
+        AllowOnlyPolicyNetworksToAutoconnect: true,
+        AllowOnlyPolicyNetworksToConnect: false,
+      }, result);
+    }));
+  },
 ];
 
 chrome.test.getConfig(function(config) {
   var args = JSON.parse(config.customArg);
   var tests = availableTests.filter(function(op) {
     return args.test == op.name;
   });
   if (tests.length !== 1) {
     chrome.test.notifyFail('Test not found ' + args.test);
     return;
   }
 
   chrome.test.runTests(tests);
 });