title: DownloadManager how to replace HttpClient?
body: <p>I have Android 4.1.2 device.
  I'm trying to download file from HTTPS and get error about not valid certificate.</p>
  
  <p>Ok, I created custom TrustManager, which skips this error.</p>
  
  <p>How to specify, that DownloadManager used my HttpClient whith custom TrustManager?</p>