Implementation of getCurrentProxySettings for proxy settings API.

chrome/test/data/extensions/api_test/proxy/individual/test.js

 // Copyright (c) 2010 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.
 
 // proxy api test
 // browser_tests.exe --gtest_filter=ExtensionApiTest.ProxyFixedIndividual
 
+function expect(expected, message) {
+  return chrome.test.callbackPass(function(value) {
+    chrome.test.assertEq(expected, value, message);
+  });
+}
+
 chrome.test.runTests([
   function setIndividualProxies() {
     var httpProxy = {
       host: "1.1.1.1"
     };
+    var httpProxyExpected = {
+      scheme: "http",
+      host: "1.1.1.1",
+      port: 80
+    };
     var httpsProxy = {
       host: "2.2.2.2"
     };
+    var httpsProxyExpected = {
+      scheme: "http",
+      host: "2.2.2.2",
+      port: 80
+    };
     var ftpProxy = {
       host: "3.3.3.3",
       port: 9000
     };
+    var ftpProxyExpected = {
+      scheme: "http",  // this is added.
+      host: "3.3.3.3",
+      port: 9000
+    };
     var socksProxy = {
       scheme: "socks4",
       host: "4.4.4.4",
       port: 9090
     };
+    var socksProxyExpected = socksProxy;
 
     var rules = {
       proxyForHttp: httpProxy,
       proxyForHttps: httpsProxy,
       proxyForFtp: ftpProxy,
       socksProxy: socksProxy,
     };
+    var rulesExpected = {
+      proxyForHttp: httpProxyExpected,
+      proxyForHttps: httpsProxyExpected,
+      proxyForFtp: ftpProxyExpected,
+      socksProxy: socksProxyExpected,
+    };
 
     var config = { rules: rules, mode: "fixed_servers" };
+    var configExpected = { rules: rulesExpected, mode: "fixed_servers" };
+
     chrome.experimental.proxy.useCustomProxySettings(config);
-    chrome.test.succeed();
+    chrome.experimental.proxy.getCurrentProxySettings(
+        false,
+        expect(configExpected, "invalid proxy settings"));
+    chrome.experimental.proxy.getCurrentProxySettings(
+        true,
+        expect(configExpected, "invalid proxy settings"));
   }
 ]);