Replace misc. network stub flags with more flexible ones

chromeos/dbus/fake_dbus_thread_manager.cc

Index: chromeos/dbus/fake_dbus_thread_manager.cc
diff --git a/chromeos/dbus/fake_dbus_thread_manager.cc b/chromeos/dbus/fake_dbus_thread_manager.cc
index a57a7c2f14ac49293cbfcef14d0e3cbe92cfaa1a..b5bb7879c2c950c106a09d1cd72a371574a9432a 100644
--- a/chromeos/dbus/fake_dbus_thread_manager.cc
+++ b/chromeos/dbus/fake_dbus_thread_manager.cc
@@ -117,6 +117,13 @@ void FakeDBusThreadManager::SetFakeShillClients() {
       scoped_ptr<ShillProfileClient>(new FakeShillProfileClient));
 }
 
+void FakeDBusThreadManager::SetupDefaultEnvironment() {
+  ShillManagerClient::TestInterface* manager =
+      shill_manager_client_->GetTestInterface();
+  if (manager)
+    manager->SetupDefaultEnvironment();
+}
+
 void FakeDBusThreadManager::SetBluetoothAdapterClient(
     scoped_ptr<BluetoothAdapterClient> client) {
   bluetooth_adapter_client_ = client.Pass();