GitLab

Store can_share capability from Google Drive API. This is pre-work to
grey-out the 'Share' button for files without Sharing permission in
the Files app.

Bug: 719959
Change-Id: I37281af81aeb5dfcb1a01a503ba4edb10686bf4d
Reviewed-on: https://chromium-review.googlesource.com/1068551Reviewed-by: Stuart Langley <slangley@chromium.org>
Reviewed-by: Ryo Hashimoto <hashimoto@chromium.org>
Commit-Queue: Sasha Morrissey <sashab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560940}