content_browsertests failing on chromium.chromiumos/linux-chromeos-dbg

Builders failed on: 
- linux-chromeos-dbg: 
  https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/linux-chromeos-dbg

[ RUN      ] WebClipboardImplTest.PasteRTF
[15003:15034:0724/220935.250755:ERROR:network_service.cc(66)] Not implemented reached in std::unique_ptr<net::NetworkChangeNotifier> network::(anonymous namespace)::CreateNetworkChangeNotifierIfNeeded()
DevTools listening on ws://127.0.0.1:45487/devtools/browser/62b0bcf0-5bbd-4a33-b5e9-b0af156cb841
[15003:15003:0724/220935.272481:ERROR:proxy_resolution_service.cc(1528)] ProxyConfigService for ChromeOS should be created in profile_io_data.cc::CreateProxyConfigService and this should be used only for examples.
BrowserTestBase received signal: Terminated. Backtrace:
#0 0x7f76871e9edd base::debug::StackTrace::StackTrace()
#1 0x7f7686efd49c base::debug::StackTrace::StackTrace()
#2 0x0000023a3d24 content::(anonymous namespace)::DumpStackTraceSignalHandler()
#3 0x7f766db04cb0 <unknown>
#4 0x7f766dbcc6d3 epoll_wait
#5 0x7f768728ba41 epoll_dispatch
#6 0x7f768727f115 event_base_loop
#7 0x7f768722e8d5 base::MessagePumpLibevent::Run()
#8 0x7f7686f9117e base::MessageLoop::Run()
#9 0x7f7687038962 base::RunLoop::Run()
#10 0x0000023bd2a9 content::FrameDeletedObserver::FrameTreeNodeObserverImpl::Run()
#11 0x0000023b5620 content::FrameFocusedObserver::Wait()
#12 0x00000118f239 content::(anonymous namespace)::WebClipboardImplTest_PasteRTF_Test::RunTestOnMainThread()
#13 0x0000023a29ce content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#14 0x00000083020d _ZN4base8internal13FunctorTraitsIMN7content41GenerateMHTMLAndExitRendererMessageFilterEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#15 0x000000830154 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content41GenerateMHTMLAndExitRendererMessageFilterEFvvEJPS5_EEEvOT_DpOT0_
#16 0x0000023a4e25 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#17 0x0000023a4d6c _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE3RunEPNS0_13BindStateBaseE
#18 0x0000006ef04d _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#19 0x0000025b87dd content::ShellBrowserMainParts::PreMainMessageLoopRun()
#20 0x7f76811e34ec content::BrowserMainLoop::PreMainMessageLoopRun()
#21 0x7f767feda7bd _ZN4base8internal13FunctorTraitsIMN7content24NetworkConnectionTrackerEFvvEvE6InvokeIS5_PS3_JEEEvT_OT0_DpOT1_
#22 0x7f767feda704 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIRKMN7content24NetworkConnectionTrackerEFvvEJPS5_EEEvOT_DpOT0_
#23 0x7f76811e8c95 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#24 0x7f76811e8bdc _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE3RunEPNS0_13BindStateBaseE
#25 0x7f767fe92ecd _ZNKR4base17RepeatingCallbackIFvvEE3RunEv
#26 0x7f7682087c5d content::StartupTaskRunner::RunAllTasksNow()
#27 0x7f76811dec00 content::BrowserMainLoop::CreateStartupTasks()
#28 0x7f76811eae81 content::BrowserMainRunnerImpl::Initialize()
#29 0x000002555d1d ShellBrowserMain()
#30 0x00000252a558 content::ShellMainDelegate::RunProcess()
#31 0x7f768332e7ae content::RunBrowserProcessMain()
#32 0x7f7683330fea content::ContentMainRunnerImpl::Run()
#33 0x7f768332584c content::ContentServiceManagerMainDelegate::RunEmbedderProcess()
#34 0x7f767b760161 service_manager::Main()
#35 0x7f768332b9c5 content::ContentMain()
#36 0x0000023a1f81 content::BrowserTestBase::SetUp()
#37 0x000002381e06 content::ContentBrowserTest::SetUp()
#38 0x0000012019be _ZN7testing8internal12InvokeHelperIvNSt3__15tupleIJEEEE12InvokeMethodIN4base7RunLoopEMS8_FvvEEEvPT_T0_RKS4_
#39 0x000001519a52 testing::internal::HandleExceptionsInMethodIfSupported<>()
#40 0x0000014fd594 testing::Test::Run()
#41 0x0000014fdfd0 testing::TestInfo::Run()
#42 0x0000014fea7f testing::TestCase::Run()
#43 0x000001510c28 testing::internal::UnitTestImpl::RunAllTests()
#44 0x0000015247ce testing::internal::HandleSehExceptionsInMethodIfSupported<>()
#45 0x00000151b1a2 testing::internal::HandleExceptionsInMethodIfSupported<>()
#46 0x000001510887 testing::UnitTest::Run()
#47 0x0000024b4191 RUN_ALL_TESTS()
#48 0x0000024b0b5b base::TestSuite::Run()
#49 0x00000238dc52 content::ContentTestLauncherDelegate::RunTestSuite()
#50 0x0000024085e9 content::LaunchTests()
#51 0x00000238dba2 main
#52 0x7f766daeff45 __libc_start_main
#53 0x000000605f1a _start