Flake seen here:
https://ci.chromium.org/p/chromium/builders/luci.chromium.try/win7_chromium_rel_ng/22000

Swarming shard:
https://chromium-swarm.appspot.com/task?id=3e3d59b22a848a10&refresh=10&show_raw=1

Flakiness dashboard (my failure doesn't show up there, at least not yet):
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=browser_tests&tests=MaterialHistoryListTest.All

Log excerpt:
[ RUN      ] MaterialHistoryListTest.All

[6024:8088:0621/160806.299:WARNING:discovery_network_list_win.cc(195)] Failed to open Wlan client handle: 1062

[6024:8368:0621/160806.311:WARNING:chrome_browser_main_win.cc(653)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=MaterialHistoryListTest.All --single_process --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir4272_9969\results4272_14135\test_results.xml" --test-launcher-summary-output="e:\b\s\w\ioehzpiv\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir4272_9969\d4272_18638" --disable-offline-auto-reload --enable-blink-features=MojoJSTest --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 --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,SpeculativePreconnect,TestFeatureForBrowserTest2 --flag-switches-begin --flag-switches-end --restore-last-session about:blank

[8840:980:0621/160806.433:INFO:GrGLInterface.cpp(542)] ../../third_party/skia/src/gpu/gl/GrGLInterface.cpp:542 GrGLInterface::validate() failed.



[6024:8368:0621/160806.519:WARNING:gaia_auth_fetcher.cc(902)] Could not reach Google Accounts servers: errno -11

[8840:980:0621/160806.523:INFO:media_foundation_video_encode_accelerator_win.cc(353)] Windows versions earlier than 8 are not supported.

[6024:8368:0621/160807.367:INFO:CONSOLE(1236)] "Running TestCase MaterialHistoryListTest.MAYBE_All", source: file:///E:/b/s/w/ir/chrome/test/data/webui/test_api.js (1236)

[6024:8368:0621/160807.383:WARNING:gaia_auth_fetcher.cc(902)] Could not reach Google Accounts servers: errno -11

[6024:8368:0621/160807.932:WARNING:CONSOLE(0)] "Styling master document from stylesheets defined in HTML Imports is deprecated. Please refer to https://goo.gl/EGXzpw for possible migration paths.", source:  (0)

[6024:8368:0621/160810.319:WARNING:gaia_auth_fetcher.cc(902)] Could not reach Google Accounts servers: errno -11

[6024:8368:0621/160811.863:ERROR:CONSOLE(383)] "Uncaught (in promise) TypeError: Cannot read property '$' of undefined", source: file:///E:/b/s/w/ir/chrome/test/data/webui/md_history/history_list_test.js (383)

[6024:8368:0621/160819.106:WARNING:gaia_auth_fetcher.cc(902)] Could not reach Google Accounts servers: errno -11

[631/1003] MaterialHistoryListTest.All (TIMED OUT)


Not top priority – not seeing this on other tryjobs – but appreciate investigation.