notification/drawable-anydpi-v21/ic_network_locked_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M19.5,10c0.17,0 0.33,0.03 0.5,0.05L20,1L1,20h13v-3c0,-0.89 0.39,-1.68 1,-2.23v-0.27c0,-2.48 2.02,-4.5 4.5,-4.5zM22,16v-1.5c0,-1.38 -1.12,-2.5 -2.5,-2.5S17,13.12 17,14.5L17,16c-0.55,0 -1,0.45 -1,1v4c0,0.55 0.45,1 1,1h5c0.55,0 1,-0.45 1,-1v-4c0,-0.55 -0.45,-1 -1,-1zM21,16h-3v-1.5c0,-0.83 0.67,-1.5 1.5,-1.5s1.5,0.67 1.5,1.5L21,16z"/>
</vector>