This is negatively impacting the CQ by causing unnecessary retries.
cc'ing and assinging recent committers in chrome/browser/feature_engagement/new_tab/
Also see  issue 779160 


https://chromium-swarm.appspot.com/task?id=399d0c95878d4b10

[ RUN      ] NewTabTrackerBrowserTest.TestShowPromo
[6976:2516:1103/163553.771:WARNING:chrome_browser_main_win.cc(613)] Command line too long for RegisterApplicationRestart:  --brave-new-test-launcher --cfi-diag=0 --gtest_also_run_disabled_tests --gtest_filter=NewTabTrackerBrowserTest.TestShowPromo --single_process --test-launcher-bot-mode --test-launcher-output="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3824_13949\results3824_27466\test_results.xml" --test-launcher-summary-output="e:\b\s\w\iofyy1k1\output.json" --user-data-dir="C:\Users\CHROME~2\AppData\Local\Temp\scoped_dir3824_13949\d3824_30518" --disable-offline-auto-reload --no-first-run --no-default-browser-check --enable-logging=stderr --safebrowsing-disable-auto-update --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-features=NetworkPrediction --flag-switches-begin --flag-switches-end --restore-last-session about:blank
[3096:6316:1103/163553.858:INFO:media_foundation_video_encode_accelerator_win.cc(370)] Windows versions earlier than 8 are not supported.
Received fatal exception EXCEPTION_ACCESS_VIOLATION
Backtrace:
	feature_engagement::NewTabTrackerBrowserTest_TestShowPromo_Test::RunTestOnMainThread [0x014C1F7C+700]
	content::BrowserTestBase::ProxyRunTestOnMainThreadLoop [0x02F43839+265]
	ChromeBrowserMainParts::PreMainMessageLoopRunImpl [0x03785E02+3546]
	ChromeBrowserMainParts::PreMainMessageLoopRun [0x03784F6B+171]
	content::BrowserMainLoop::PreMainMessageLoopRun [0x01CEBAE2+66]
	content::StartupTaskRunner::RunAllTasksNow [0x01FFEAD7+41]
	content::BrowserMainLoop::CreateStartupTasks [0x01CEA604+632]
	content::BrowserMainRunnerImpl::Initialize [0x01CEE963+531]
	content::BrowserMain [0x01CE8DB8+136]
	content::RunNamedProcessTypeMain [0x02DAD3AE+146]
	content::ContentMainRunnerImpl::Run [0x02DAD936+278]
	service_manager::Main [0x040F4B9F+675]
	content::ContentMain [0x02DAD2C5+49]
	content::BrowserTestBase::SetUp [0x02F43663+1491]
	InProcessBrowserTest::SetUp [0x02EA0C0A+346]
	testing::Test::Run [0x01643205+103]
	testing::TestInfo::Run [0x01643943+201]
	testing::TestCase::Run [0x01643CD1+235]
	testing::internal::UnitTestImpl::RunAllTests [0x016479F3+595]
	testing::UnitTest::Run [0x016476C9+151]
	base::TestSuite::Run [0x02EB9B58+100]
	ChromeTestSuiteRunner::RunTestSuite [0x05DF87DB+75]
	content::LaunchTests [0x02F373A7+419]
	LaunchChromeTests [0x05DF8AF3+143]
	main [0x05DF8751+109]
	__scrt_common_main_seh [0x06A69A6A+248] (f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283)
	BaseThreadInitThunk [0x76FD336A+18]
	RtlInitializeExceptionChain [0x77CD9902+99]
	RtlInitializeExceptionChain [0x77CD98D5+54]
[451/720] NewTabTrackerBrowserTest.TestShowPromo (CRASHED)