Build target: headless_browsertests
Test name: TargetDomainDisposeContextFailsIfInUse.RunAsyncTest
Platforms: all desktop
Symptom: test flakily crashes (on shutdown, I think)

Example failure log:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.linux%2FLinux_Tests__dbg__1_%2F67397%2F%2B%2Frecipes%2Fsteps%2Fheadless_browsertests%2F0%2Flogs%2FTargetDomainDisposeContextFailsIfInUse.RunAsyncTest%2F0

BrowserTestBase received signal: Segmentation fault. Backtrace:
#0 0x7f0cafdeedbd base::debug::StackTrace::StackTrace()
#1 0x7f0cafded1ec base::debug::StackTrace::StackTrace()
#2 0x0000012ddf8f content::(anonymous namespace)::DumpStackTraceSignalHandler()
#3 0x7f0c9e0b3cb0 <unknown>
#4 0x7f0caf552dcc headless::HeadlessBrowserContextImpl::ShouldRemoveHeaders()
#5 0x7f0caf598248 headless::HeadlessNetworkDelegate::OnBeforeURLRequest()
#6 0x7f0cae9ba61e net::NetworkDelegate::NotifyBeforeURLRequest()
#7 0x7f0caf1b73fc net::URLRequest::Start()
#8 0x7f0caafbeedb content::ResourceLoader::StartRequestInternal()
#9 0x7f0caafbe70f content::ResourceLoader::Resume()
#10 0x7f0caafc0e15 content::ResourceLoader::ScopedDeferral::~ScopedDeferral()
#11 0x7f0caafb86a1 content::ResourceLoader::StartRequest()
#12 0x7f0caafa1c2f content::ResourceDispatcherHostImpl::StartLoading()
#13 0x7f0caaf96ccc content::ResourceDispatcherHostImpl::BeginRequestInternal()
#14 0x7f0caafa0c14 content::ResourceDispatcherHostImpl::BeginNavigationRequest()
#15 0x7f0caaf6b754 content::NavigationURLLoaderImplCore::Start()
#16 0x7f0caaf6a811 _ZN4base8internal13FunctorTraitsIMN7content27NavigationURLLoaderImplCoreEFvPNS2_15ResourceContextEPN3net23URLRequestContextGetterEPN7storage17FileSystemContextEPNS2_33ServiceWorkerNavigationHandleCoreEPNS2_28AppCacheNavigationHandleCoreENSt3__110unique_ptrINS2_21NavigationRequestInfoENSG_14default_deleteISI_EEEENSH_INS2_16NavigationUIDataENSJ_ISM_EEEEEvE6InvokeI13scoped_refptrIS3_EJS5_S8_SB_SD_SF_SL_SO_EEEvSQ_OT_DpOT0_
#17 0x7f0caaf6a3c6 _ZN4base8internal12InvokeHelperILb0EvE8MakeItSoIMN7content27NavigationURLLoaderImplCoreEFvPNS4_15ResourceContextEPN3net23URLRequestContextGetterEPN7storage17FileSystemContextEPNS4_33ServiceWorkerNavigationHandleCoreEPNS4_28AppCacheNavigationHandleCoreENSt3__110unique_ptrINS4_21NavigationRequestInfoENSI_14default_deleteISK_EEEENSJ_INS4_16NavigationUIDataENSL_ISO_EEEEEJ13scoped_refptrIS5_ES7_SA_SD_SF_SH_SN_SQ_EEEvOT_DpOT0_
#18 0x7f0caaf6a09f _ZN4base8internal7InvokerINS0_9BindStateIMN7content27NavigationURLLoaderImplCoreEFvPNS3_15ResourceContextEPN3net23URLRequestContextGetterEPN7storage17FileSystemContextEPNS3_33ServiceWorkerNavigationHandleCoreEPNS3_28AppCacheNavigationHandleCoreENSt3__110unique_ptrINS3_21NavigationRequestInfoENSH_14default_deleteISJ_EEEENSI_INS3_16NavigationUIDataENSK_ISN_EEEEEJ13scoped_refptrIS4_ES6_S9_NS0_17UnretainedWrapperISB_EESE_SG_NS0_13PassedWrapperISM_EENSW_ISP_EEEEEFvvEE7RunImplISR_NSH_5tupleIJST_S6_S9_SV_SE_SG_SX_SY_EEEJLm0ELm1ELm2ELm3ELm4ELm5ELm6ELm7EEEEvOT_OT0_NSH_16integer_sequenceImJXspT1_EEEE
#19 0x7f0caaf69d29 _ZN4base8internal7InvokerINS0_9BindStateIMN7content27NavigationURLLoaderImplCoreEFvPNS3_15ResourceContextEPN3net23URLRequestContextGetterEPN7storage17FileSystemContextEPNS3_33ServiceWorkerNavigationHandleCoreEPNS3_28AppCacheNavigationHandleCoreENSt3__110unique_ptrINS3_21NavigationRequestInfoENSH_14default_deleteISJ_EEEENSI_INS3_16NavigationUIDataENSK_ISN_EEEEEJ13scoped_refptrIS4_ES6_S9_NS0_17UnretainedWrapperISB_EESE_SG_NS0_13PassedWrapperISM_EENSW_ISP_EEEEEFvvEE7RunOnceEPNS0_13BindStateBaseE
#20 0x7f0cafd9dfb1 _ZNO4base12OnceCallbackIFvvEE3RunEv
#21 0x7f0cafdf30ba base::debug::TaskAnnotator::RunTask()
#22 0x7f0cafe928c5 base::internal::IncomingTaskQueue::RunTask()
#23 0x7f0cafe9b6e4 base::MessageLoop::RunTask()
#24 0x7f0cafe9b986 base::MessageLoop::DeferOrRunPendingTask()
#25 0x7f0cafe9bcd3 base::MessageLoop::DoWork()
#26 0x7f0cafea1ac9 base::MessagePumpLibevent::Run()
#27 0x7f0cafe9ae84 base::MessageLoop::Run()
#28 0x7f0caff448c5 base::RunLoop::Run()
#29 0x7f0cb0006484 base::Thread::Run()
#30 0x7f0caa903cc6 content::BrowserThreadImpl::IOThreadRun()
#31 0x7f0caa903fcb content::BrowserThreadImpl::Run()
#32 0x7f0cb00070a4 base::Thread::ThreadMain()
#33 0x7f0caffec8c1 base::(anonymous namespace)::ThreadFunc()
#34 0x7f0cb0191184 start_thread
#35 0x7f0c9e17affd clone