shill: routing table: Apply routes from IPConfig

BUG=chromium-os:27876
TEST=New unit tests

Change-Id: Iad53d1847e0badd767c523cdc689861e1cdf243b
Reviewed-on: https://gerrit.chromium.org/gerrit/18269
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Commit-Ready: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
diff --git a/ipconfig.h b/ipconfig.h
index b459565..87f4a15 100644
--- a/ipconfig.h
+++ b/ipconfig.h
@@ -112,6 +112,7 @@
   FRIEND_TEST(IPConfigTest, UpdateProperties);
   FRIEND_TEST(ResolverTest, Empty);
   FRIEND_TEST(ResolverTest, NonEmpty);
+  FRIEND_TEST(RoutingTableTest, ConfigureRoutes);
   FRIEND_TEST(RoutingTableTest, RouteAddDelete);
   FRIEND_TEST(RoutingTableTest, RouteDeleteForeign);