This adds a private extension API to use for simple networking

chrome/browser/chromeos/extensions/networking_private_api_factory.cc

+// 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.
+
+#include "chrome/browser/chromeos/extensions/networking_private_api_factory.h"
+
+#include "chrome/browser/chromeos/extensions/networking_private_api.h"
+#include "chrome/browser/extensions/extension_system_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+
+namespace chromeos {
+
+// static
+NetworkingPrivateAPI* NetworkingPrivateAPIFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<NetworkingPrivateAPI*>(
+      GetInstance()->GetServiceForProfile(profile, true));
+}
+
+// static
+NetworkingPrivateAPIFactory* NetworkingPrivateAPIFactory::GetInstance() {
+  return Singleton<NetworkingPrivateAPIFactory>::get();
+}
+
+NetworkingPrivateAPIFactory::NetworkingPrivateAPIFactory()
+    : ProfileKeyedServiceFactory(
+          "NetworkingPrivateAPI",
+          ProfileDependencyManager::GetInstance()) {
+  DependsOn(extensions::ExtensionSystemFactory::GetInstance());
+}
+
+NetworkingPrivateAPIFactory::~NetworkingPrivateAPIFactory() {
+}
+
+ProfileKeyedService* NetworkingPrivateAPIFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+  return new NetworkingPrivateAPI(profile);
+}
+
+bool NetworkingPrivateAPIFactory::ServiceHasOwnInstanceInIncognito() const {
+  // Explicitly and always allow this service in guest login mode.   See
+  // chrome/browser/profiles/profile_keyed_base_factory.h comment
+  // for the details.
+  return true;
+}
+
+bool NetworkingPrivateAPIFactory::ServiceIsCreatedWithProfile() const {
+  return true;
+}
+
+bool NetworkingPrivateAPIFactory::ServiceIsNULLWhileTesting() const {
+  return true;
+}
+
+}  // namespace chromeos
+