WebSocket Pepper API: allow to close connection without code and reason

ppapi/cpp/websocket.cc

Index: ppapi/cpp/websocket.cc
diff --git a/ppapi/cpp/websocket.cc b/ppapi/cpp/websocket.cc
index 1fbcaa4ede25eb2c882836a8dbc22b5298dd99bc..e4cac1a5807e9fc98632c9848f8898a37e6a70d7 100644
--- a/ppapi/cpp/websocket.cc
+++ b/ppapi/cpp/websocket.cc
@@ -55,7 +55,7 @@ int32_t WebSocket::Connect(const Var& url, const Var protocols[],
   return result;
 }
 
-int32_t WebSocket::Close(uint16_t code, const Var& reason,
+int32_t WebSocket::Close(PP_WebSocketStatusCode code, const Var& reason,
     const CompletionCallback& callback) {
   if (!has_interface<PPB_WebSocket_1_0>())
     return PP_ERROR_BADRESOURCE;