Introduce PPB_UDPSocket_Dev.

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index 8d8fda664c57b28753213fb5c93cb3f4ce3d2c70..0c3ebd091feab98dbc659cf900a9298b6d271579 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -40,6 +40,7 @@
 #include "ppapi/proxy/talk_resource.h"
 #include "ppapi/proxy/truetype_font_resource.h"
 #include "ppapi/proxy/udp_socket_private_resource.h"
+#include "ppapi/proxy/udp_socket_resource.h"
 #include "ppapi/proxy/url_loader_resource.h"
 #include "ppapi/proxy/url_request_info_resource.h"
 #include "ppapi/proxy/url_response_info_resource.h"
@@ -322,6 +323,10 @@ PP_Resource ResourceCreationProxy::CreateTCPSocketPrivate(
   return PPB_TCPSocket_Private_Proxy::CreateProxyResource(instance);
 }
 
+PP_Resource ResourceCreationProxy::CreateUDPSocket(PP_Instance instance) {
+  return (new UDPSocketResource(GetConnection(), instance))->GetReference();
+}
+
 PP_Resource ResourceCreationProxy::CreateUDPSocketPrivate(
     PP_Instance instance) {
   return (new UDPSocketPrivateResource(