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

ppapi/api/ppb_websocket.idl

Index: ppapi/api/ppb_websocket.idl
diff --git a/ppapi/api/ppb_websocket.idl b/ppapi/api/ppb_websocket.idl
index 1e138bb80b47bf8a405a99177edef010c7321f7d..0069bb4a169319421542d939ea66fc95e2f00f8b 100644
--- a/ppapi/api/ppb_websocket.idl
+++ b/ppapi/api/ppb_websocket.idl
@@ -58,6 +58,15 @@ enum PP_WebSocketReadyState {
 [assert_size(4)]
 enum PP_WebSocketCloseCode {
   /**
+   * Indicates to request closing connection without status code and reason.
+   *
+   * (Note that the code 1005 is forbidden to send in actual close frames by
+   * the RFC. PP_WebSocket reuses this code internally and the code will never
+   * appear in the actual close frames.)
+   */
+  PP_WEBSOCKETSTATUSCODE_NOT_SPECIFIED = 1005,
+
+  /**
    * Status codes in the range 0-999 are not used.
    */
 
@@ -244,7 +253,8 @@ interface PPB_WebSocket {
    * @param[in] web_socket A <code>PP_Resource</code> corresponding to a
    * WebSocket.
    *
-   * @param[in] code The WebSocket close code. This is ignored if it is 0.
+   * @param[in] code The WebSocket close code. This is ignored if it is
+   * <code>PP_WEBSOCKETSTATUSCODE_NOT_SPECIFIED</code>.
    * <code>PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE</code> must be used for the
    * usual case. To indicate some specific error cases, codes in the range
    * <code>PP_WEBSOCKETSTATUSCODE_USER_REGISTERED_MIN</code> to