Call Device.SetCarrier when the ONC Carrier property is specified.

chromeos/network/managed_network_configuration_handler.h

Index: chromeos/network/managed_network_configuration_handler.h
diff --git a/chromeos/network/managed_network_configuration_handler.h b/chromeos/network/managed_network_configuration_handler.h
index ebe1baf64e6371842a4537f2d0358e1b005998ab..f8672eeab06ef0b7e5f553fe23a28e147314aad0 100644
--- a/chromeos/network/managed_network_configuration_handler.h
+++ b/chromeos/network/managed_network_configuration_handler.h
@@ -84,7 +84,7 @@ class CHROMEOS_EXPORT ManagedNetworkConfigurationHandler {
       const std::string& service_path,
       const base::DictionaryValue& user_settings,
       const base::Closure& callback,
-      const network_handler::ErrorCallback& error_callback) const = 0;
+      const network_handler::ErrorCallback& error_callback) = 0;
 
   // Initially configures an unconfigured network with the given user settings
   // and returns the new identifier to |callback| if successful. Fails if the