GitLab

Adding |isDriveMounted| to the init functions allows us to prevent the
creation of the Save to Drive destination on Chrome OS when necessary.

Bug: 1112416
Change-Id: I509c5354bf07134b6cce5a9298f9624059a3c37e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2441729Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814868}