Android: The progress bar in the window’s title does not display

In fact the correct code is (tested and working):

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
    requestWindowFeature(Window.FEATURE_PROGRESS);
    currentURL = BrowserActivity.this.getIntent().getExtras().getString("currentURL");

    setContentView(R.layout.browser);

    setProgressBarIndeterminateVisibility(true);
    setProgressBarVisibility(true);

    try {
        mWebView = (WebView) findViewById(R.id.webview);
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.setWebViewClient(new browserActivityClient());

        mWebView.setWebChromeClient(new WebChromeClient() {
           public void onProgressChanged(WebView view, int progress) {
               setProgress(progress * 100);
              if(progress == 100) {
                 setProgressBarIndeterminateVisibility(false);
                 setProgressBarVisibility(false);
              }
           }
        });
        mWebView.loadUrl(currentURL);
    } catch (Exception e) {
        Log.e(getClass().getSimpleName(), "Browser: " + e.getMessage());
        Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
    } 
}