GitLab

crrev.com/c/1437036 makes GbmWrapper create GbmPixmap which has one file
descriptor for each plane. This CL follows the change in chrome os capture
stack.

Bug: 911370
Test: capture_unittests
Change-Id: Ia498f36d9f4edd074cba4dc8ea5bc863364297c1
Reviewed-on: https://chromium-review.googlesource.com/c/1438858
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Ricky Liang <jcliang@chromium.org>
Reviewed-by: Miguel Casas <mcasas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626935}