Set did_use_http_auth flag for tunneled requests

Proxied requests already had the did_use_http_auth set correctly for
http:// URLs (the non-tunnel case).  The flag was never set for the
tunnel case.

Change-Id: I477693755e6dd90a5b4318f2c4d0bc0bb307479d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1549082
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Wojciech Dzier┼╝anowski <wdzierzanowski@opera.com>
Cr-Commit-Position: refs/heads/master@{#646914}
3 files changed