0. Build with dcheck_always_on
1. Start chrome, leave it unattended with just NTP open
2. In a few minutes, the browser crashes with the following stack:

[37204:37641:0622/152638.718514:FATAL:thread_restrictions.cc(58)] Check failed: false. LazyInstance/Singleton is not allowed to be used on this thread.  Most likely it's because this thread is not joinable (or the current task is running with TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN semantics), so AtExitManager may have deleted the object on shutdown, leading to a potential shutdown crash. If you need to use the object from this context, it'll have to be updated to use Leaky traits.
#0 0x555d39c33207 base::debug::StackTrace::StackTrace()
#1 0x555d39c4d57d logging::LogMessage::~LogMessage()
#2 0x555d39cacb65 base::ThreadRestrictions::AssertSingletonAllowed()
#3 0x555d387c20b5 base::LazyInstance<>::Pointer()
#4 0x555d3a8031fa mojo::internal::MessageDispatchContext::MessageDispatchContext()
#5 0x555d37fcf3b4 chrome::mojom::FilePatcher_PatchFileBsdiff_ForwardToCallback::Accept()
#6 0x555d3a7ff645 mojo::InterfaceEndpointClient::HandleValidatedMessage()
#7 0x555d3a7ff206 mojo::FilterChain::Accept()
#8 0x555d3a80081e mojo::InterfaceEndpointClient::HandleIncomingMessage()
#9 0x555d3a80771d mojo::internal::MultiplexRouter::ProcessIncomingMessage()
#10 0x555d3a806f5e mojo::internal::MultiplexRouter::Accept()
#11 0x555d3a7ff206 mojo::FilterChain::Accept()
#12 0x555d3a7fd8ac mojo::Connector::ReadSingleMessage()
#13 0x555d3a7fe1d2 mojo::Connector::ReadAllAvailableMessages()
#14 0x555d3a7fe03e mojo::Connector::OnHandleReadyInternal()
#15 0x555d3a8134ef mojo::SimpleWatcher::OnHandleReady()
#16 0x555d38921d08 _ZN4base8internal7InvokerINS0_9BindStateIMN7content25ServiceWorkerProviderHostEFviN5blink21WebServiceWorkerStateEEJNS_7WeakPtrIS4_EEiS6_EEEFvvEE7RunImplIRKS8_RKSt5tupleIJSA_iS6_EEJLm0ELm1ELm2EEEEvOT_OT0_NS_13IndexSequenceIJXspT1_EEEE
#17 0x555d37fd1c71 _ZNO4base8CallbackIFvvELNS_8internal8CopyModeE1ELNS2_10RepeatModeE1EE3RunEv
#18 0x555d39ce4633 base::debug::TaskAnnotator::RunTask()
#19 0x555d39c9b446 base::internal::TaskTracker::PerformRunTask()
#20 0x555d39c9bae0 base::internal::TaskTrackerPosix::PerformRunTask()
#21 0x555d39c9ac4c base::internal::TaskTracker::RunNextTask()
#22 0x555d39cefe8e base::internal::SchedulerWorker::Thread::ThreadMain()
#23 0x555d39ca382c base::(anonymous namespace)::ThreadFunc()
#24 0x7f960a092184 start_thread
#25 0x7f9603da5bed clone