From https://ci.chromium.org/buildbot/tryserver.chromium.win/win7_chromium_rel_ng/132296

It looks like it could be a test framework problem

Retrying 5 tests (retry #1)
[857/861] BookmarkBubbleSignInDelegateTest.OnSignInLinkClickedIncognito_RegularBrowserClosed (1217 ms)
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_1875\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_14646"
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_1875\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_14646"
[ RUN      ] ExtensionApiCaptureTest.CaptureNullWindow
[5924:3980:0328/042210.287:WARNING:discovery_network_list_win.cc(195)] Failed to open Wlan client handle: 1062
[5924:6656:0328/042210.303:WARNING:chrome_browser_main_win.cc(630)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_1875\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_14646" --disable-offline-auto-reload --disable-renderer-backgrounding --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=30 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1,VizDisplayCompositor --disable-features=NetworkPrediction,TestFeatureForBrowserTest2 --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[5788:6648:0328/042210.365:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
[858/861] ExtensionApiCaptureTest.CaptureNullWindow (TIMED OUT)
[859/861] MediaRouterIntegrationBrowserTest.OpenLocalMediaFileInNewTab (5953 ms)
[860/861] ProfileWindowBrowserTest.GuestCannotSignin (1206 ms)
[861/861] TranslateLanguageBrowserTest.RecentTargetLanguage (1896 ms)
Retrying 1 test (retry #2)
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_381\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_5076"
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_381\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_5076"
[ RUN      ] ExtensionApiCaptureTest.CaptureNullWindow
[5340:3640:0328/042249.385:WARNING:discovery_network_list_win.cc(195)] Failed to open Wlan client handle: 1062
[5340:4860:0328/042249.401:WARNING:chrome_browser_main_win.cc(630)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_381\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_5076" --disable-offline-auto-reload --disable-renderer-backgrounding --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=30 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1,VizDisplayCompositor --disable-features=NetworkPrediction,TestFeatureForBrowserTest2 --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[2692:3068:0328/042249.463:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
[862/862] ExtensionApiCaptureTest.CaptureNullWindow (TIMED OUT)
Retrying 1 test (retry #3)
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_12737\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_7221"
Still waiting for the following processes to finish:
	".\browser_tests.exe" --brave-new-test-launcher --cfi-diag=0 --enable-features=VizDisplayCompositor --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_12737\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_7221"
[ RUN      ] ExtensionApiCaptureTest.CaptureNullWindow
[4804:296:0328/042319.420:WARNING:discovery_network_list_win.cc(195)] Failed to open Wlan client handle: 1062
[4804:6944:0328/042319.436:WARNING:chrome_browser_main_win.cc(630)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=ExtensionApiCaptureTest.CaptureNullWindow --single_process --test-launcher-bot-mode --test-launcher-filter-file=../../testing/buildbot/filters/viz.browser_tests.filter --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\results3348_12737\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iotg17zu\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3348_3651\d3348_7221" --disable-offline-auto-reload --disable-renderer-backgrounding --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=30 --allow-file-access-from-files --dom-automation --log-gpu-control-list-decisions --disable-backgrounding-occluded-windows --override-use-software-gl-for-tests --force-color-profile=srgb --disable-compositor-ukm-for-tests --enable-features=TestFeatureForBrowserTest1,VizDisplayCompositor --disable-features=NetworkPrediction,TestFeatureForBrowserTest2 --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[3972:5384:0328/042319.498:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
[863/863] ExtensionApiCaptureTest.CaptureNullWindow (TIMED OUT)
1 test timed out:
    ExtensionApiCaptureTest.CaptureNullWindow (../../chrome/browser/extensions/extension_tabs_apitest.cc:207)