https://ci.chromium.org/buildbot/tryserver.chromium.chromiumos/linux-chromeos-rel/108407 

Build log:

[ RUN      ] ExtensionBrowserTest.NavigateToInaccessibleResourceFromChromeURL
[11095:11163:0424/044441.703201:ERROR:account_manager.cc(37)] Failed to read tokens file
[11095:11095:0424/044441.707544:WARNING:user_policy_manager_factory_chromeos.cc(198)] No policy loaded for known non-enterprise user
[11095:11095:0424/044441.716759:WARNING:user_session_manager.cc(1086)] Attempting to save user password for non enterprise user.
[11095:11095:0424/044441.872929:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[11095:11095:0424/044441.873513:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[11095:11095:0424/044441.874464:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[11095:11095:0424/044441.874603:ERROR:network_type_pattern.cc(134)] NetworkTypePattern: wifi: Can not match empty type.
[11095:11095:0424/044442.592455:ERROR:bad_message.cc(25)] Terminating renderer for bad IPC message, reason 181
[11095:11163:0424/044442.711906:WARNING:simple_synchronous_entry.cc(1255)] Could not open platform files for entry.
../../chrome/browser/extensions/window_open_apitest.cc:376: Failure
Expected equality of these values:
  start_urls[i]
    Which is: chrome-search://local-ntp/local-ntp.html
  tab->GetMainFrame()->GetLastCommittedURL()
    Which is:
Stack trace:
#0 0x000001f4592c testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#1 0x000001f45309 testing::internal::AssertHelper::operator=()
#2 0x000001310a65 ExtensionBrowserTest_NavigateToInaccessibleResourceFromChromeURL_Test::RunTestOnMainThread()
#3 0x000004a8eda7 content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#4 0x0000045a20cf ChromeBrowserMainParts::PreMainMessageLoopRunImpl()
#5 0x0000045a0e6a ChromeBrowserMainParts::PreMainMessageLoopRun()
#6 0x000001accd11 chromeos::ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun()
#7 0x000002bb5ba1 content::BrowserMainLoop::PreMainMessageLoopRun()
#8 0x000002fe5175 content::StartupTaskRunner::RunAllTasksNow()
#9 0x000002bb4622 content::BrowserMainLoop::CreateStartupTasks()
#10 0x000002bb8173 content::BrowserMainRunnerImpl::Initialize()
#11 0x000002bb2172 content::BrowserMain()
#12 0x0000043f687d content::ContentMainRunnerImpl::Run()
#13 0x000006548042 service_manager::Main()
#14 0x0000043f44f4 content::ContentMain()
#15 0x000004a8e963 content::BrowserTestBase::SetUp()
#16 0x000004559e63 InProcessBrowserTest::SetUp()
[11095:11095:0424/044443.007081:WARNING:one_google_bar_fetcher_impl.cc(315)] Request failed with error: -11: net::ERR_NOT_IMPLEMENTED
[11173:11173:0424/044443.204958:ERROR:gles2_cmd_decoder.cc(18106)] [.DisplayCompositor-0x19eec5e0b000]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
[11173:11173:0424/044443.205045:ERROR:gles2_cmd_decoder.cc(10188)] [.DisplayCompositor-0x19eec5e0b000]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.
[11095:11175:0424/044443.241053:WARNING:discardable_shared_memory_manager.cc(436)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[11095:11857:0424/044443.329404:WARNING:internal_linux.cc(64)] Failed to read /proc/11173/stat
[11095:11095:0424/044443.329551:WARNING:url_request_context_getter.cc(43)] URLRequestContextGetter leaking due to no owning thread.
[11095:11095:0424/044443.331278:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[11095:11095:0424/044443.331312:WARNING:pref_notifier_impl.cc(23)] Pref observer found at shutdown.
[  FAILED  ] ExtensionBrowserTest.NavigateToInaccessibleResourceFromChromeURL, where TypeParam =  and GetParam() =  (1833 ms)


Some issue with tab->GetMainFrame()->GetLastCommittedURL() being wrong.

https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=browser_tests%20(with%20patch)&showAllRuns=true&tests=ExtensionBrowserTest.NavigateToInaccessibleResourceFromChromeURL

Looking for the earliest chrome-os flake (on the right), yes it's recent, suggests this build

https://ci.chromium.org/p/chromium/builders/luci.chromium.try/linux_chromium_rel_ng/76424

@dcheng that was this was for this change 
https://chromium-review.googlesource.com/c/chromium/src/+/1023174/7

Sheriff should maybe disable (/me moving on).

I don't see any recent failures, removing sheriff label (test not disabled), feel free to confirm / close as WontFix

Seems this test got disabled for linux-chromeos-rel CQ trys

https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=browser_tests%20(with%20patch)&tests=ExtensionBrowserTest.NavigateToInaccessibleResourceFromChromeURL

> feel free to confirm / close as WontFix

With the test disabled, bug status Available.