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This is a reland of 4430b4c3

Original change's description:
> display: Deduplicate display transform code with overlay transform code
>
> Display rotation transforms are a subset of overlay transforms, so we can
> reuse OverlayTransformToTransform to compute display rotation matrices.
>
> Bug: 1019015
>
> Change-Id: I95d099323cb866ccc4b9cea404e1e6f8f2dfff65
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1913604
> Commit-Queue: Michael Spang <spang@chromium.org>
> Reviewed-by: Khushal <khushalsagar@chromium.org>
> Reviewed-by: Ken Buchanan <kenrb@chromium.org>
> Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
> Reviewed-by: Mitsuru Oshima (OOO - back on Dec 2nd) <oshima@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#717832}

TBR=oshima@chromium.org,sadrul@chromium.org,kenrb@chromium.org,kenrb@chromium.org

Bug: 1019015
Change-Id: I3eaa7819971e9ebd51329f22506cb6bb905d429a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1931131
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#722643}