The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/de6484608cec6032a08f30fa6e845fecff13f470

commit de6484608cec6032a08f30fa6e845fecff13f470
Author: Maksim Sisov <msisov@igalia.com>
Date: Fri Sep 07 09:44:10 2018

[ozone/wayland] Add partial swap support.

This CL enables partial swap support in Wayland by
enabling SupportsPostSubBuffer.

A damage region describes the regions where the pending
buffer is different from the current surface contents, and where
the surface therefore needs to be repainted.

Enabling this needs requires fixing  http://crbug.com/339493 
as well for Intel drivers.

Bug:  880726 
Change-Id: I3bb2c7f876e3b5297c0d5595e309e3853772430f
Reviewed-on: https://chromium-review.googlesource.com/1206370
Commit-Queue: Maksim Sisov <msisov@igalia.com>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589477}
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/gpu/gbm_surfaceless_wayland.cc
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/gpu/gbm_surfaceless_wayland.h
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/gpu/wayland_connection_proxy.cc
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/gpu/wayland_connection_proxy.h
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_buffer_manager.cc
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_buffer_manager.h
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_connection.cc
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_connection.h
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_surface_factory.cc
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/platform/wayland/wayland_surface_factory.h
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/public/interfaces/wayland/BUILD.gn
[modify] https://crrev.com/de6484608cec6032a08f30fa6e845fecff13f470/ui/ozone/public/interfaces/wayland/wayland_connection.mojom