Implement accessibility property support via CDP for Chrome - #60778

[taskcluster 2026-08-07 20:39:42.990Z] Task ID: EDH5InzqT5SYD-FiDEUE2w
[taskcluster 2026-08-07 20:39:42.990Z] Worker ID: 3209778060045581495
[taskcluster 2026-08-07 20:39:42.990Z] Worker Group: us-central1-f
[taskcluster 2026-08-07 20:39:42.990Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-08-07 20:39:42.990Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-08-07 20:39:42.990Z] Worker Version: 46.1.0
[taskcluster 2026-08-07 20:39:42.990Z] Public IP: 35.202.242.178
[taskcluster 2026-08-07 20:39:42.990Z] Hostname: proj-wpt-ci-p6kblfszrvawkexyuyzzdq

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[notice] A new release of pip is available: 25.2 -> 26.2.1
[notice] To update, run: python3 -m pip install --upgrade pip
py39: install_deps> python -I -m pip install -r /home/test/web-platform-tests/tools/wpt/../requirements_pytest.txt -r /home/test/web-platform-tests/tools/wpt/requirements.txt -r /home/test/web-platform-tests/tools/wpt/../wptrunner/requirements.txt -r /home/test/web-platform-tests/tools/wpt/../wptrunner/requirements_chromium.txt -r /home/test/web-platform-tests/tools/wpt/../wptrunner/requirements_firefox.txt
py39: commands[0]> pytest -c/home/test/web-platform-tests/tools/wpt/../pytest.ini --rootdir=/home/test/web-platform-tests/tools/wpt
mem avail: 14902 of 15806 MiB (94.28%), swap free:    0 of    0 MiB ( 0.00%)
============================= test session starts ==============================
platform linux -- Python 3.9.25, pytest-8.3.2, pluggy-1.6.0
cachedir: .tox/py39/.pytest_cache
rootdir: /home/test/web-platform-tests/tools/wpt
configfile: ../pytest.ini
plugins: cov-7.1.0, hypothesis-6.112.0
collecting ... 
collecting 62 items                                                            
collected 86 items                                                             

tests/test_browser.py .............................                      [ 33%]
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tests/test_markdown.py ...                                               [ 41%]
tests/test_revlist.py ...                                                [ 45%]
tests/test_run.py ...................s...                                [ 72%]
tests/test_testfiles.py ....                                             [ 76%]
tests/test_update_expectations.py mem avail: 14554 of 15806 MiB (92.08%), swap free:    0 of    0 MiB ( 0.00%)
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================== 83 passed, 3 skipped in 306.94s (0:05:06) ===================
  py39: OK (329.26=setup[13.99]+cmd[315.27] seconds)
  congratulations :) (329.30 seconds)
py39: install_deps> python -I -m pip install -r /home/test/web-platform-tests/tools/wave/../requirements_pytest.txt -r /home/test/web-platform-tests/tools/wave/requirements.txt -r /home/test/web-platform-tests/tools/wave/../wptrunner/requirements.txt -r /home/test/web-platform-tests/tools/wave/../wptrunner/requirements_chromium.txt -r /home/test/web-platform-tests/tools/wave/../wptrunner/requirements_firefox.txt
py39: commands[0]> pytest
============================= test session starts ==============================
platform linux -- Python 3.9.25, pytest-8.3.2, pluggy-1.6.0
cachedir: wave/.tox/py39/.pytest_cache
rootdir: /home/test/web-platform-tests/tools
configfile: pytest.ini
plugins: cov-7.1.0, hypothesis-6.112.0
collecting ... 
collected 1 item                                                               

tests/test_wave.py .                                                     [100%]

============================== 1 passed in 12.11s ==============================
/usr/lib/python3.9/multiprocessing/resource_tracker.py:216: UserWarning: resource_tracker: There appear to be 15 leaked semaphore objects to clean up at shutdown
  warnings.warn('resource_tracker: There appear to be %d '
  py39: OK (21.56=setup[8.53]+cmd[13.03] seconds)
  congratulations :) (21.59 seconds)
[taskcluster 2026-08-07 20:50:53.104Z] === Task Finished ===
[taskcluster 2026-08-07 20:50:53.161Z] Successful task run with exit code: 0 completed in 670.174 seconds