code:         void sendPluginResult(PluginResult pluginResult) {
              synchronized (this) {
                  if (!aborted) {
                      callbackContext.sendPluginResult(pluginResult);
                  }
              }
          }
      }
  
      /**
       * Adds an interface method to an InputStream to return the number of bytes
       * read from the raw stream. This is used to track total progress against
       * the HTTP Content-Length header value from the server.
       */
  