Fix stride in single planar frames created by CreateFrame()

This CL is a followup to https://chromium-review.googlesource.com/743022.
It adds the missing stride information for single planar frames.

Bug: 555909
Change-Id: Ied15fa15b898dbd17f3dae45788b68a0a286ef24
Reviewed-on: https://chromium-review.googlesource.com/766867
Reviewed-by: Emircan Uysaler <emircan@chromium.org>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Commit-Queue: Emircan Uysaler <emircan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516074}
2 files changed