system/weaved: Add dependency on webservd

Add back webserv_client and connect to webserver which is now
available on Brillo.

BUG:23287946
Change-Id: I57b685c1277e5a0a8c1568063e58f33c187e98c7
diff --git a/buffet/manager.h b/buffet/manager.h
index a72b1af..85c3c0e 100644
--- a/buffet/manager.h
+++ b/buffet/manager.h
@@ -35,7 +35,7 @@
 class HttpTransportClient;
 class MdnsClient;
 class NetworkClient;
-//class WebServClient;
+class WebServClient;
 struct BuffetConfigPaths;
 
 template<typename... Types>
@@ -127,7 +127,7 @@
   std::unique_ptr<HttpTransportClient> http_client_;
   std::unique_ptr<NetworkClient> network_client_;
   std::unique_ptr<MdnsClient> mdns_client_;
-//  std::unique_ptr<WebServClient> web_serv_client_;
+  std::unique_ptr<WebServClient> web_serv_client_;
   std::unique_ptr<BuffetConfig> config_;
   std::unique_ptr<weave::Device> device_;
   std::unique_ptr<DBusCommandDispacher> command_dispatcher_;