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

ppapi/cpp/websocket.h

Index: ppapi/cpp/websocket.h
diff --git a/ppapi/cpp/websocket.h b/ppapi/cpp/websocket.h
index a34fdb7731ebfad36af041788f3a2e2c389340f5..89cd782fc043b05f5de72cb926d2d9c0a924fbeb 100644
--- a/ppapi/cpp/websocket.h
+++ b/ppapi/cpp/websocket.h
@@ -70,7 +70,8 @@ class WebSocket : public Resource {
   /// Close() closes the specified WebSocket connection by specifying
   /// <code>code</code> and <code>reason</code>.
   ///
-  /// @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
@@ -95,7 +96,7 @@ class WebSocket : public Resource {
   /// <code>PP_ERROR_NOACCESS</code> corresponds to an InvalidAccessError in
   /// the WebSocket API specification. Returns <code>PP_ERROR_INPROGRESS</code>
   /// if a previous call to Close() is not finished.
-  int32_t Close(uint16_t code, const Var& reason,
+  int32_t Close(PP_WebSocketStatusCode code, const Var& reason,
                 const CompletionCallback& callback);
 
   /// ReceiveMessage() receives a message from the WebSocket server.