This is the first pass at making GetIPConfigs asynchronous.

chrome/browser/chromeos/cros/network_library_impl_stub.cc

 // Copyright (c) 2012 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/cros/network_library_impl_stub.h"
 
 #include "base/bind.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
@@ skipping 673 matching lines @@
 }
 
 void NetworkLibraryImplStub::EnableOfflineMode(bool enable) {
   if (enable != offline_mode_) {
     offline_mode_ = enable;
     CallEnableNetworkDeviceType(TYPE_WIFI, !enable);
     CallEnableNetworkDeviceType(TYPE_CELLULAR, !enable);
   }
 }
 
-NetworkIPConfigVector NetworkLibraryImplStub::GetIPConfigs(
+void NetworkLibraryImplStub::GetIPConfigs(
+    const std::string& device_path,
+    HardwareAddressFormat format,
+    const NetworkGetIPConfigsCallback& callback) {
+  callback.Run(ip_configs_, hardware_address_);
+}
+
+NetworkIPConfigVector NetworkLibraryImplStub::GetIPConfigsAndBlock(
     const std::string& device_path,
     std::string* hardware_address,
     HardwareAddressFormat format) {
   *hardware_address = hardware_address_;
   return ip_configs_;
 }
 
 void NetworkLibraryImplStub::SetIPParameters(const std::string& service_path,
                                              const std::string& address,
                                              const std::string& netmask,
@@ skipping 18 matching lines @@
     if (network)
       ip_configs_.push_back(NetworkIPConfig(network->device_path(),
                                             IPCONFIG_TYPE_IPV4,
                                             address,
                                             netmask,
                                             gateway,
                                             name_servers));
 }
 
 }  // namespace chromeos