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

ppapi/utility/websocket/websocket_api.h

Index: ppapi/utility/websocket/websocket_api.h
diff --git a/ppapi/utility/websocket/websocket_api.h b/ppapi/utility/websocket/websocket_api.h
index f733b1c49110bfda8001d785dc75a523cf835642..890dccef354f763047d988e1d08e630a52889415 100644
--- a/ppapi/utility/websocket/websocket_api.h
+++ b/ppapi/utility/websocket/websocket_api.h
@@ -47,14 +47,15 @@ class WebSocketAPI {
   /// Close() closes the specified WebSocket connection by specifying
   /// <code>code</code> and <code>reason</code>.
   ///
-  /// @param[in] code The WebSocket close code. Ignored if it is 0.
+  /// @param[in] code The WebSocket close code. Ignored if it is
+  /// PP_WEBSOCKETSTATUSCODE_NOT_SPECIFIED.
   /// @param[in] reason A <code>Var</code> of string type which represents the
   /// WebSocket close reason. Ignored if it is undefined type.
   ///
   /// @return An int32_t containing an error code from
   /// <code>pp_errors.h</code>.
   /// See also <code>pp::WebSocket::Close</code>.
-  int32_t Close(uint16_t code, const Var& reason);
+  int32_t Close(PP_WebSocketStatusCode code, const Var& reason);
 
   /// Send() sends a message to the WebSocket server.
   ///