Implementation of http authentication with NewPasswordFormManager.

This CL implements filling and saving credentials http auth credentials
with NewPasswordFormManager. Before that, PasswordFormManager was used
even if the new parsing was on.

Bug: 831123
Change-Id: I7d1446a9426889f9fbbd1380c30495b4abe83a4b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1369796
Commit-Queue: Vadym Doroshenko <dvadym@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#642510}
14 files changed