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This CL adds the drive action vector icon. This icon is created from
material design icon person_add.svg, this is the same icon used in files
app for the drive share.

BUG=1097623

Change-Id: Ic92d505befcbae3d77869e34c78c53c3da956021
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404232Reviewed-by: Evan Stade <estade@chromium.org>
Reviewed-by: Melissa Zhang <melzhang@chromium.org>
Commit-Queue: Maggie Cai <mxcai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806871}