Repro: Use Smart Lock sign-in and to sign into the machine.

Chrome crashes with the stack trace below, but this isn't simply a DCHECK() failure; this results in kUnknownState being logged to metrics, when it really should have been an appropriate value.

#0  0x000056140d383bda in logging::LogMessage::~LogMessage()::$_2::operator()() const () at ../../base/logging.cc:874
#1  logging::LogMessage::~LogMessage () at ../../base/logging.cc:874
#2  0x000056140b59974c in chromeos::EasyUnlockService::GetSmartUnlockPasswordAuthEvent () at ../../chrome/browser/chromeos/login/easy_unlock/easy_unlock_service.cc:656
#3  0x000056140b59e715 in chromeos::EasyUnlockServiceSignin::RecordPasswordLoginEvent () at ../../chrome/browser/chromeos/login/easy_unlock/easy_unlock_service_signin_chromeos.cc:302
#4  0x000056140b5b3993 in chromeos::(anonymous namespace)::RecordPasswordLoginEvent () at ../../chrome/browser/chromeos/login/existing_user_controller.cc:192
#5  chromeos::ExistingUserController::PerformLogin () at ../../chrome/browser/chromeos/login/existing_user_controller.cc:630
#6  0x000056140b5b3495 in chromeos::ExistingUserController::DoLogin () at ../../chrome/browser/chromeos/login/existing_user_controller.cc:1742
#7  0x000056140b5b8304 in base::internal::FunctorTraits<void (chromeos::ExistingUserController::*)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), void>::Invoke<void (chromeos::ExistingUserController::*)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), base::WeakPtr<chromeos::ExistingUserController> const&, chromeos::UserContext const&, chromeos::SigninSpecifics const&> () at ../../base/bind_internal.h:516
#8  base::internal::InvokeHelper<true, void>::MakeItSo<void (chromeos::ExistingUserController::* const&)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), base::WeakPtr<chromeos::ExistingUserController> const&, chromeos::UserContext const&, chromeos::SigninSpecifics const&> () at ../../base/bind_internal.h:636
#9  base::internal::Invoker<base::internal::BindState<void (chromeos::ExistingUserController::*)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), base::WeakPtr<chromeos::ExistingUserController>, chromeos::UserContext, chromeos::SigninSpecifics>, void ()>::RunImpl<void (chromeos::ExistingUserController::* const&)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), std::__1::tuple<base::WeakPtr<chromeos::ExistingUserController>, chromeos::UserContext, chromeos::SigninSpecifics> const&, 0ul, 1ul, 2ul>(void (chromeos::ExistingUserController::* const&)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), std::__1::tuple<base::WeakPtr<chromeos::ExistingUserController>, chromeos::UserContext, chromeos::SigninSpecifics> const&, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul>) () at ../../base/bind_internal.h:689
#10 base::internal::Invoker<base::internal::BindState<void (chromeos::ExistingUserController::*)(chromeos::UserContext const&, chromeos::SigninSpecifics const&), base::WeakPtr<chromeos::ExistingUserController>, chromeos::UserContext, chromeos::SigninSpecifics>, void ()>::Run(base::internal::BindStateBase*) () at ../../base/bind_internal.h:671
#11 0x000056140b5b7ddf in base::OnceCallback<void ()>::Run() && () at ../../base/callback.h:99
#12 chromeos::ExistingUserController::ContinueLoginWhenCryptohomeAvailable(base::OnceCallback<void ()>, bool) () at ../../chrome/browser/chromeos/login/existing_user_controller.cc:1609
#13 0x000056140b3e2013 in base::internal::FunctorTraits<void (arc::ArcBluetoothBridge::*)(base::OnceCallback<void (arc::mojom::BluetoothAdapterState)>, bool) const, void>::Invoke<void (arc::ArcBluetoothBridge::*)(base::OnceCallback<void (arc::mojom::BluetoothAdapterState)>, bool) const, base::WeakPtr<arc::ArcBluetoothBridge> const&, base::RepeatingCallback<void (arc::mojom::BluetoothAdapterState)> const&, bool const&>(void (arc::ArcBluetoothBridge::*)(base::OnceCallback<void (arc::mojom::BluetoothAdapterState)>, bool) const, base::WeakPtr<arc::ArcBluetoothBridge> const&, base::RepeatingCallback<void (arc::mojom::BluetoothAdapterState)> const&, bool const&) ()
    at ../../base/bind_internal.h:531
#14 0x000056140b5b86fe in base::internal::InvokeHelper<true, void>::MakeItSo<void (chromeos::ExistingUserController::* const&)(base::OnceCallback<void ()>, bool), base::WeakPtr<chromeos::ExistingUserController> const&, base::RepeatingCallback<void ()> const&, bool>(void (chromeos::ExistingUserController::* const&)(base::OnceCallback<void ()>, bool), base::WeakPtr<chromeos::ExistingUserController> const&, base::RepeatingCallback<void ()> const&, bool&&) () at ../../base/bind_internal.h:636
#15 base::internal::Invoker<base::internal::BindState<void (chromeos::ExistingUserController::*)(base::OnceCallback<void ()>, bool), base::WeakPtr<chromeos::ExistingUserController>, base::RepeatingCallback<void ()> >, void (bool)>::RunImpl<void (chromeos::ExistingUserController::* const&)(base::OnceCallback<void ()>, bool), std::__1::tuple<base::WeakPtr<chromeos::ExistingUserController>, base::RepeatingCallback<void ()> > const&, 0ul, 1ul>(void (chromeos::ExistingUserController::* const&)(base::OnceCallback<void ()>, bool), std::__1::tuple<base::WeakPtr<chromeos::ExistingUserController>, base::RepeatingCallback<void ()> > const&, std::__1::integer_sequence<unsigned long, 0ul, 1ul>, bool&&) () at ../../base/bind_internal.h:689
#16 base::internal::Invoker<base::internal::BindState<void (chromeos::ExistingUserController::*)(base::OnceCallback<void ()>, bool), base::WeakPtr<chromeos::ExistingUserController>, base::RepeatingCallback<void ()> >, void (bool)>::Run(base::internal::BindStateBase*, bool) () at ../../base/bind_internal.h:671
#17 0x000056140e280232 in base::OnceCallback<void (bool)>::Run(bool) && () at ../../base/callback.h:99
#18 dbus::ObjectProxy::RunWaitForServiceToBeAvailableCallbacks () at ../../dbus/object_proxy.cc:761
#19 0x00005614099e686f in base::internal::FunctorTraits<void (chromeos::CryptohomeAuthenticator::*)(bool), void>::Invoke<void (chromeos::CryptohomeAuthenticator::*)(bool), scoped_refptr<chromeos::CryptohomeAuthenticator>, bool> () at ../../base/bind_internal.h:516
#20 base::internal::InvokeHelper<false, void>::MakeItSo<void (chromeos::CryptohomeAuthenticator::*)(bool), scoped_refptr<chromeos::CryptohomeAuthenticator>, bool> () at ../../base/bind_internal.h:616
#21 base::internal::Invoker<base::internal::BindState<void (chromeos::CryptohomeAuthenticator::*)(bool), scoped_refptr<chromeos::CryptohomeAuthenticator>, bool>, void ()>::RunImpl<void (chromeos::CryptohomeAuthenticator::*)(bool), std::__1::tuple<scoped_refptr<chromeos::CryptohomeAuthenticator>, bool>, 0ul, 1ul>(void (chromeos::CryptohomeAuthenticator::*&&)(bool), std::__1::tuple<scoped_refptr<chromeos::CryptohomeAuthenticator>, bool>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul>) () at ../../base/bind_internal.h:689
#22 base::internal::Invoker<base::internal::BindState<void (chromeos::CryptohomeAuthenticator::*)(bool), scoped_refptr<chromeos::CryptohomeAuthenticator>, bool>, void ()>::RunOnce(base::internal::BindStateBase*) () at ../../base/bind_internal.h:658
#23 0x000056140d450327 in base::OnceCallback<void ()>::Run() && () at ../../base/callback.h:99
#24 base::debug::TaskAnnotator::RunTask () at ../../base/debug/task_annotator.cc:99
#25 0x000056140d38d53f in base::MessageLoopImpl::RunTask () at ../../base/message_loop/message_loop_impl.cc:374
#26 0x000056140d38dc32 in base::MessageLoopImpl::DeferOrRunPendingTask () at ../../base/message_loop/message_loop_impl.cc:385
#27 base::MessageLoopImpl::DoWork () at ../../base/message_loop/message_loop_impl.cc:473
#28 0x000056140d44c439 in base::MessagePumpLibevent::Run () at ../../base/message_loop/message_pump_libevent.cc:210
#29 0x000056140d38d015 in base::MessageLoopImpl::Run () at ../../base/message_loop/message_loop_impl.cc:326
#30 0x000056140d3b6836 in base::RunLoop::Run () at ../../base/run_loop.cc:102
#31 0x000056140ced0178 in ChromeBrowserMainParts::MainMessageLoopRun () at ../../chrome/browser/chrome_browser_main.cc:1852
#32 0x000056140a5c8014 in content::BrowserMainLoop::RunMainMessageLoopParts () at ../../content/browser/browser_main_loop.cc:999
#33 0x000056140a5ca883 in content::BrowserMainRunnerImpl::Run () at ../../content/browser/browser_main_runner_impl.cc:165
#34 0x000056140a5c488f in content::BrowserMain () at ../../content/browser/browser_main.cc:47
#35 0x000056140cec10ad in content::RunBrowserProcessMain () at ../../content/app/content_main_runner_impl.cc:545
#36 content::ContentMainRunnerImpl::RunServiceManager () at ../../content/app/content_main_runner_impl.cc:954
#37 0x000056140cec0c76 in content::ContentMainRunnerImpl::Run () at ../../content/app/content_main_runner_impl.cc:868
#38 0x000056140cec8545 in service_manager::Main () at ../../services/service_manager/embedder/main.cc:460
#39 0x000056140cebf061 in content::ContentMain () at ../../content/app/content_main.cc:19
#40 0x0000561409334c5f in ChromeMain () at ../../chrome/app/chrome_main.cc:102
#41 0x000078d2e0e63a94 in __libc_start_main (main=0x561409334bc0 <main()>, argc=34, argv=0x7ffc57568628, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc57568618) at ../csu/libc-start.c:308
#42 0x0000561409334a8a in _start ()