private void toBrowserAppTrafficSource(BrowserAppTrafficSource source) {
        toSource(source);
        source.setTrafficCategory(BrowserAppTrafficCategory.NORMAL);
    }
Browser traffic and performance related source.
oap-server/server-receiver-plugin/skywalking-browser-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/browser/provider/parser/performance/listener/BrowserPerfDataSourceBuilder.java