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This CL adds the share to drive action in sharesheet for files in Google
Drive.

Currently, for files in the Google Drive folder, there is an option to
"Share with others" to give permission to others to access the file
in the drive. Now we are migrating this functionality to sharesheet by
adding a drive_share_action. This action should show in sharesheet with
the same condition that the Share with others option available.

To get the required drive information, we need to get drive properties
from file system URL, therefore, I moved the private
SingleEntryPropertiesGetterForDriveFs class to util so that both
private_api_drive and private_api_sharesheet can use this getter
to get the drive properties.

BUG=1097623

Change-Id: I5701ddd6fdd17c21497061dd2755e92d7616369b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2400580Reviewed-by: Dominick Ng <dominickn@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Reviewed-by: Melissa Zhang <melzhang@chromium.org>
Commit-Queue: Maggie Cai <mxcai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806070}