chromium/android_webview/nonembedded/java/res_devui/drawable/ic_flag.xml

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">

    <path
        android:fillColor="#000000"
        android:pathData="M14 6l-1-2H5v17h2v-7h5l1 2h7V6h-6zm4 8h-4l-1-2H7V6h5l1 2h5v6z" />
    <path
        android:pathData="M0 0h24v24H0V0z" />
</vector>