Implement the PAC js-binding for "myIpAddress()".

net/proxy/proxy_resolver_v8_unittest.cc

 // Copyright (c) 2009 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.
 
 #include "base/file_util.h"
 #include "base/string_util.h"
 #include "base/path_service.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_errors.h"
 #include "net/proxy/proxy_resolver_v8.h"
@@ skipping 362 matching lines @@
 
   // MyIpAddress was called two times.
   EXPECT_EQ(2, bindings->my_ip_address_count);
 }
 
 TEST(ProxyResolverV8DefaultBindingsTest, DnsResolve) {
   // Get a hold of a DefaultJSBindings* (it is a hidden impl class).
   net::ProxyResolverV8 resolver;
   net::ProxyResolverV8::JSBindings* bindings = resolver.js_bindings();
   
+  // Considered an error.
+  EXPECT_EQ("", bindings->DnsResolve(""));
+
   const struct {
     const char* input;
     const char* expected;
   } tests[] = {
     {"www.google.com", "127.0.0.1"},
-    {"", ""},
     {".", ""},
     {"foo@google.com", ""},
     {"@google.com", ""},
     {"foo:pass@google.com", ""},
     {"%", ""},
     {"www.google.com:80", ""},
     {"www.google.com:", ""},
     {"www.google.com.", ""},
     {"#", ""},
     {"127.0.0.1", ""},
@@ skipping 18 matching lines @@
     // It comes directly from the PAC javascript.
     //
     // For now we just check that it maps to 127.0.0.1.
     std::string expected = tests[i].expected;
     if (expected == "")
       expected = "127.0.0.1";
     EXPECT_EQ(expected, actual);
   }
 }
 
+TEST(ProxyResolverV8DefaultBindingsTest, MyIpAddress) {
+  // Get a hold of a DefaultJSBindings* (it is a hidden impl class).
+  net::ProxyResolverV8 resolver;
+  net::ProxyResolverV8::JSBindings* bindings = resolver.js_bindings();
+
+  // Our ip address is always going to be 127.0.0.1, since we are using a
+  // mock host mapper when running in unit-test mode.
+  std::string my_ip_address = bindings->MyIpAddress();
+
+  EXPECT_EQ("127.0.0.1", my_ip_address);
+}