GitLab

The existing SMB integration is based on file_system_provider, which
internally saves (if requested) mounts and restores them on login. Smbfs
is no longer based on FSP, and therefore needs to use its own mechanism
for saving and restoring mount on login.

Bug: 939235
Change-Id: I3c6c96cc8c733c74b5e071167d7d9ebf3b9eb12d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2071537Reviewed-by: Austin Tankiang <austinct@chromium.org>
Commit-Queue: Anand Mistry <amistry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745308}