i am trying to add

Code:
webview.getSettings().setDomStorageEnabled(true);
in WebViewControl.java


but during packaging i am getting this error:
Z:\src\com\epicgames\ue4\WebViewControl.java:146: error: cannot find symbol
2> [javac] webview.getSettings().setDomStorageEnabled(true);
2> [javac] ^
2> [javac] symbol: variable webview

any idea what i am missing?