Sometimes, this happens:

[ RUN      ] BrowserTest.WindowOpenClose3

[6328:5084:0123/064924.448:WARNING:chrome_browser_main_win.cc(616)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=BrowserTest.WindowOpenClose3 --single_process --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir2168_24194\results2168_13692\test_results.xml" --test-launcher-summary-output="e:\b\s\w\ioc7qdkt\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir2168_24194\d2168_11730" --disable-offline-auto-reload --no-first-run --no-default-browser-check --enable-logging=stderr --disable-default-apps --wm-window-animations-disabled --disable-component-update --test-type=browser --force-color-profile=srgb --disable-zero-browsers-open-for-tests --ipc-connection-timeout=45 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --disable-gl-drawing-for-tests --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1 --disable-features=NetworkPrediction,TestFeatureForBrowserTest2 --flag-switches-begin --flag-switches-end --restore-last-session about:blank

[6380:4952:0123/064925.527:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.

[6328:2236:0123/064932.111:WARNING:embedded_test_server.cc(228)] Request not handled. Returning 404: /favicon.ico

[6328:5084:0123/064932.460:ERROR:frame_sink_provider_impl.cc(34)] No RenderWidgetHost exists with id 7 in process 4

[6328:2236:0123/064932.761:WARNING:embedded_test_server.cc(228)] Request not handled. Returning 404: /favicon.ico

[6328:6364:0123/064932.762:WARNING:http_cache_transaction.cc(1241)] Unable to create cache entry

[6328:2236:0123/064932.852:WARNING:embedded_test_server.cc(228)] Request not handled. Returning 404: /favicon.ico

[354/355] BrowserTest.WindowOpenClose3 (TIMED OUT)


e.g.:

https://uberchromegw.corp.google.com/i/chromium.win/builders/Win7%20Tests%20%28dbg%29%281%29/builds/65953

jochen@, you made a relevant-looking change - can you peek at this please?