Get device by type for Hardware Address

BUG=303930
R=armansito@chromium.org

Review URL: https://codereview.chromium.org/61183002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233287 0039d316-1c4b-4281-b951-d872f2087c98

chromeos/network/network_state_handler.cc

@@ -247,10 +247,12 @@ const NetworkState* NetworkStateHandler::FirstNetworkByType(
 
 std::string NetworkStateHandler::HardwareAddressForType(
     const NetworkTypePattern& type) const {
+  const DeviceState* device = NULL;
   const NetworkState* network = ConnectedNetworkByType(type);
-  if (!network)
-    return std::string();
-  const DeviceState* device = GetDeviceState(network->device_path());
+  if (network)
+    device = GetDeviceState(network->device_path());
+  else
+    device = GetDeviceStateByType(type);
   if (!device)
     return std::string();
   std::string result = device->mac_address();