title: Detect screenshots on Android apps running on Chromebook
body: <p>I have a react native android application running on Chrome OS. Usually the android app calls a function to disable screenshots on phones like this:</p>
  <pre><code>    NativeModules.FlagSecure.activate();
  </code></pre>
  <p>However, this approach doesn't do anything on Chrome OS; I am able to use the screenshot functionality with <code>Ctrl + Show Windows</code> and with the shift-modifier. How would I go about detecting screenshot activity or screen recording on Chrome OS?</p>