mattieapps

<link href="../core-icon-button/core-icon-button.html" rel="import">
<link href="../core-toolbar/core-toolbar.html" rel="import">
<link href="../core-header-panel/core-header-panel.html" rel="import">
<link href="../core-icons/core-icons.html" rel="import">
<link href="../core-icons/av-icons.html" rel="import">
<link href="../paper-fab/paper-fab.html" rel="import">

<polymer-element name="my-element">

  <template>

mattieapps

<link href="../core-icon-button/core-icon-button.html" rel="import">
<link href="../core-toolbar/core-toolbar.html" rel="import">
<link href="../core-header-panel/core-header-panel.html" rel="import">
<link href="../core-field/core-field.html" rel="import">
<link href="../core-icon/core-icon.html" rel="import">
<link href="../core-input/core-input.html" rel="import">

<polymer-element name="my-element">

  <template>

mattieapps

 @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {

        if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
            mWebView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }