GitLab

Fixes a bug where metrics were not recorded correctly for failed mounts
due to invalid urls.

Bug: chromium:902923
Change-Id: Iba8164d4869818a44faa10ee18503cdd1e24d424
Reviewed-on: https://chromium-review.googlesource.com/c/1340971Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609052}