The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/autotest/+/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5

commit 87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5
Author: Miguel Casas <mcasas@chromium.org>
Date: Tue Jul 24 19:44:14 2018

autotest: add graphics_HwOverlay tests

This CL adds a new autotest for checking if 2D/3D HTML canvases
are correctly promoted to overlays. Counting the number of
overlays is added to the graphics_utils.py file; the rest is
a combination of a py file and control and html files.

Note that it needs a flag to work on ToT, which is passed to
Chrome, and that it should work on Rockchip (w/o screen rotation)
but not on Intel (WIP).

crrev.com/c/1144481 plugs it into autotest-chrome.

Bug:  865112 
Change-Id: I22d71cf45799378e2574c33b0d389348711b0d23
Reviewed-on: https://chromium-review.googlesource.com/1142349
Commit-Ready: Miguel Casas <mcasas@chromium.org>
Tested-by: Miguel Casas <mcasas@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>

[add] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/site_tests/graphics_HwOverlays/canvas_3d.html
[modify] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/cros/graphics/graphics_utils.py
[add] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/site_tests/graphics_HwOverlays/graphics_HwOverlays.py
[add] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/site_tests/graphics_HwOverlays/canvas_2d.html
[add] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/site_tests/graphics_HwOverlays/control.canvas2D
[add] https://crrev.com/87b5a69cf8000a0f2d40ff0c068e5bee3ad4faf5/client/site_tests/graphics_HwOverlays/control.canvas3D

dcastagna@ would it be interesting to add similar tests to prevent
regressions of video playback ?

Yes it would, in particular it would be useful to test a NV12.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/a1d7250e809743ff2c16fca91513fde7a8ac0db8

commit a1d7250e809743ff2c16fca91513fde7a8ac0db8
Author: Miguel Casas <mcasas@chromium.org>
Date: Wed Jul 25 07:14:33 2018

autotest-chrome: Add graphics_HwOverlays

This CL adds graphics_HwOverlays to autotest-chrome.

BUG= chromium:865112 
CQ-DEPEND=CL:1142349
Change-Id: Ieeed50bdd2358f9eb30edf059038fde3695ac773
Reviewed-on: https://chromium-review.googlesource.com/1144481
Commit-Ready: Miguel Casas <mcasas@chromium.org>
Tested-by: Miguel Casas <mcasas@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>

[modify] https://crrev.com/a1d7250e809743ff2c16fca91513fde7a8ac0db8/chromeos-base/autotest-chrome/autotest-chrome-9999.ebuild

Wohoo! The new test started running!
https://stainless.corp.google.com/search?view=matrix&row=test&col=build&first_date=2018-07-21&last_date=2018-07-27&test=%5Egraphics%5C_HwOverlays&exclude_cts=true&exclude_not_run=false&exclude_non_release=true&exclude_au=true&exclude_acts=true&exclude_retried=true&exclude_non_production=false

It has a few failures though that need resolving...
https://stainless.corp.google.com/search?exclude_retried=true&first_date=2018-07-21&master_builder_name=&builder_name_number=&shard=&exclude_acts=true&builder_name=&master_builder_name_number=&owner=&retry=&exclude_cts=true&exclude_non_production=false&hostname=&board=&test=%5Egraphics_HwOverlays%5C.canvas3D%24&suite=&build=%5ER70%5C-10913%5C.0%5C.0%24&status=FAIL&status=ERROR&status=ABORT&reason=&waterfall=&exclude_not_run=false&last_date=2018-07-27&exclude_non_release=true&exclude_au=true&model=&view=list

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/autotest/+/990115c86e6dbb2d3d7a6dc26baf84be7a306323

commit 990115c86e6dbb2d3d7a6dc26baf84be7a306323
Author: Miguel Casas <mcasas@chromium.org>
Date: Tue Aug 07 08:50:49 2018

autotest: skip graphics_HwOverlays test if DRM atomic isn't supported

This CL supersedes crrev.com/c/1153450 and crrev.com/c/1153848, and
merges them both into a single two-pronged check.  This CL:

- Adds a graphics_utils.is_drm_atomic_supported() to detect if
any DRM device file supports the "atomic" capability. The ioctl
is based on the Chromium DrmDeviceHandle() code [1].
  This method also double checks if any of the necessary
/sys/kernel/debug/dri/... files are present.

- Skips the graphics_HwOverlays test if said function says false
(this is to skip boards that have no overlays support at all and
by design - old kernels etc).

- Corrects test flags to use --enable-experimental-web-platform-features,
 allowing (many) canvas2D tests to pass.

[1] https://cs.chromium.org/chromium/src/ui/ozone/platform/drm/host/drm_device_handle.cc?sq=package:chromium&dr=CSs&g=0&l=71

BUG= chromium:865112 
Change-Id: I1ff77fba16b8aaf3403dcca253edf59c2a1ec2d7
Reviewed-on: https://chromium-review.googlesource.com/1159197
Commit-Ready: Miguel Casas <mcasas@chromium.org>
Tested-by: Miguel Casas <mcasas@chromium.org>
Reviewed-by: Pohsien Wang <pwang@chromium.org>
Reviewed-by: Andres Calderon Jaramillo <andrescj@chromium.org>

[modify] https://crrev.com/990115c86e6dbb2d3d7a6dc26baf84be7a306323/client/site_tests/graphics_HwOverlays/graphics_HwOverlays.py
[modify] https://crrev.com/990115c86e6dbb2d3d7a6dc26baf84be7a306323/client/cros/graphics/graphics_utils.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/autotest/+/799c525881f994920356712ba6a79ac9ce07420d

commit 799c525881f994920356712ba6a79ac9ce07420d
Author: Miguel Casas <mcasas@chromium.org>
Date: Thu Aug 09 03:46:08 2018

autotest: add video to graphics_HwOverlays

This CL adds a new test case to graphics_HwOverlays.py to verify
that a large video gets promoted to Hw overlay (this has regressed
a number of times in the past).

A VP9 video is chosen for starters, more codecs prob coming.

Bug:  865112 
Change-Id: I3256ab498706e744a0cdafa6d3eb92633e1e59cd
Reviewed-on: https://chromium-review.googlesource.com/1153460
Commit-Ready: Miguel Casas <mcasas@chromium.org>
Tested-by: Miguel Casas <mcasas@chromium.org>
Reviewed-by: Pohsien Wang <pwang@chromium.org>

[modify] https://crrev.com/799c525881f994920356712ba6a79ac9ce07420d/client/site_tests/graphics_HwOverlays/canvas_3d.html
[add] https://crrev.com/799c525881f994920356712ba6a79ac9ce07420d/client/site_tests/graphics_HwOverlays/video.html
[add] https://crrev.com/799c525881f994920356712ba6a79ac9ce07420d/client/site_tests/graphics_HwOverlays/control.video
[modify] https://crrev.com/799c525881f994920356712ba6a79ac9ce07420d/client/site_tests/graphics_HwOverlays/canvas_2d.html
[modify] https://crrev.com/799c525881f994920356712ba6a79ac9ce07420d/client/site_tests/graphics_HwOverlays/graphics_HwOverlays.py

Tests are landed an running, some are flaky, to be investigated
in a follow up bug.

https://stainless.corp.google.com/search?status=GOOD&status=FAIL&status=ERROR&status=TEST_NA&status=NOT_RUN&exclude_retried=true&exclude_cts=true&exclude_non_production=false&exclude_acts=true&exclude_non_release=true&exclude_au=true&test=%5Egraphics%5C_HwOverlays&exclude_not_run=false&row=test&col=build&view=matrix&first_date=2018-10-29&last_date=2018-10-31