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This reverts commit a489cfcd.

Reason for revert: broke resizing and ui events. see
https://crbug.com/1162867

Original change's description:
> [ozone/wayland] Ensure root_surface is committed last in a frame
>
> wl_surface.commits of a frame can happen asynchronously due to wl_buffer
> import delay, frame callbacks, etc. This asynchrony can cause visual
> glitches when the root_surface commits before its subsurfaces commit.
>
> This CL ensures that a root_surface commit always happens after other
> commits in a frame.
>
> Change-Id: I7c83e122c4cdee42e6b8aca74875fa71b6c1ab5a
> Bug: 1144179
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2547395
> Commit-Queue: Kramer Ge <fangzhoug@chromium.org>
> Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
> Reviewed-by: Maksim Sisov (GMT+2) <msisov@igalia.com>
> Cr-Commit-Position: refs/heads/master@{#834327}

TBR=rjkroege@chromium.org,edcourtney@chromium.org,msisov@igalia.com,chromium-scoped@luci-project-accounts.iam.gserviceaccount.com,fangzhoug@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1144179, 1162867
Change-Id: I2cb8547d7953d30754360cc43f4461c1043da5d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2609138Reviewed-by: Maksim Sisov <msisov@igalia.com>
Commit-Queue: Maksim Sisov <msisov@igalia.com>
Cr-Commit-Position: refs/heads/master@{#840011}