Chrome Version: Version 64.0.3245.0 (Developer Build) (64-bit)
OS: Mac

I managed to reproduced it only once
What steps will reproduce the problem?
(1) On start up Chrome opened https://rsolomakhin.github.io/autofill/
(2) I quickly scrolled down to the password form and typed a few symbols into the username and password.
(3) I clicked the key icon in the omnibox which was supposed to bring the save password bubble.

What is the expected result?
The bubble is shown.

What happens instead?
A crash in DCHECK.

[10520:775:1019/185603.862661:FATAL:autofill_metrics.cc(1598)] Check failed: !form_parsed_timestamp.is_null(). 
0   libbase.dylib                       0x00000001197459de base::debug::StackTrace::StackTrace(unsigned long) + 174
1   libbase.dylib                       0x0000000119745a9d base::debug::StackTrace::StackTrace(unsigned long) + 29
2   libbase.dylib                       0x0000000119743d4c base::debug::StackTrace::StackTrace() + 28
3   libbase.dylib                       0x00000001197dcf7f logging::LogMessage::~LogMessage() + 479
4   libbase.dylib                       0x00000001197da8e5 logging::LogMessage::~LogMessage() + 21
5   libchrome_dll.dylib                 0x00000001091b8640 autofill::AutofillMetrics::FormInteractionsUkmLogger::MillisecondsSinceFormParsed(base::TimeTicks const&) const + 208
6   libchrome_dll.dylib                 0x00000001091b8915 autofill::AutofillMetrics::FormInteractionsUkmLogger::LogFieldFillStatus(autofill::FormStructure const&, autofill::AutofillField const&, autofill::AutofillMetrics::QualityMetricType) + 133
7   libchrome_dll.dylib                 0x000000010924dadb autofill::FormStructure::LogQualityMetrics(base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, autofill::AutofillMetrics::FormInteractionsUkmLogger*, bool, bool) const + 379
8   libchrome_dll.dylib                 0x0000000109198d9a autofill::AutofillManager::UploadFormDataAsyncCallback(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool) + 170
9   libchrome_dll.dylib                 0x00000001091a41ca void base::internal::FunctorTraits<void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), void>::Invoke<base::WeakPtr<autofill::AutofillManager>, autofill::FormStructure*, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>(void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), base::WeakPtr<autofill::AutofillManager>&&, autofill::FormStructure*&&, base::TimeTicks&&, base::TimeTicks&&, base::TimeTicks&&, bool&&) + 250
10  libchrome_dll.dylib                 0x00000001091a402c void base::internal::InvokeHelper<true, void>::MakeItSo<void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), base::WeakPtr<autofill::AutofillManager>, autofill::FormStructure*, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>(void (autofill::AutofillManager::*&&)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), base::WeakPtr<autofill::AutofillManager>&&, autofill::FormStructure*&&, base::TimeTicks&&, base::TimeTicks&&, base::TimeTicks&&, bool&&) + 220
11  libchrome_dll.dylib                 0x00000001091a3f2a void base::internal::Invoker<base::internal::BindState<void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), base::WeakPtr<autofill::AutofillManager>, base::internal::OwnedWrapper<autofill::FormStructure>, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>, void ()>::RunImpl<void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), std::__1::tuple<base::WeakPtr<autofill::AutofillManager>, base::internal::OwnedWrapper<autofill::FormStructure>, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>, 0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(void (autofill::AutofillManager::*&&)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), std::__1::tuple<base::WeakPtr<autofill::AutofillManager>, base::internal::OwnedWrapper<autofill::FormStructure>, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) + 410
12  libchrome_dll.dylib                 0x00000001091a3cb9 base::internal::Invoker<base::internal::BindState<void (autofill::AutofillManager::*)(autofill::FormStructure const*, base::TimeTicks const&, base::TimeTicks const&, base::TimeTicks const&, bool), base::WeakPtr<autofill::AutofillManager>, base::internal::OwnedWrapper<autofill::FormStructure>, base::TimeTicks, base::TimeTicks, base::TimeTicks, bool>, void ()>::RunOnce(base::internal::BindStateBase*) + 57
13  libbase.dylib                       0x00000001196e353f base::OnceCallback<void ()>::Run() && + 95
14  libbase.dylib                       0x0000000119a10a06 base::(anonymous namespace)::PostTaskAndReplyRelay::RunReplyAndSelfDestruct() + 390
15  libbase.dylib                       0x0000000119a10e0d void base::internal::FunctorTraits<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), void>::Invoke<base::(anonymous namespace)::PostTaskAndReplyRelay*>(void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), base::(anonymous namespace)::PostTaskAndReplyRelay*&&) + 125
16  libbase.dylib                       0x0000000119a10d54 void base::internal::InvokeHelper<false, void>::MakeItSo<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), base::(anonymous namespace)::PostTaskAndReplyRelay*>(void (base::(anonymous namespace)::PostTaskAndReplyRelay::*&&)(), base::(anonymous namespace)::PostTaskAndReplyRelay*&&) + 68
17  libbase.dylib                       0x0000000119a10ce3 void base::internal::Invoker<base::internal::BindState<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), base::internal::UnretainedWrapper<base::(anonymous namespace)::PostTaskAndReplyRelay> >, void ()>::RunImpl<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), std::__1::tuple<base::internal::UnretainedWrapper<base::(anonymous namespace)::PostTaskAndReplyRelay> >, 0ul>(void (base::(anonymous namespace)::PostTaskAndReplyRelay::*&&)(), std::__1::tuple<base::internal::UnretainedWrapper<base::(anonymous namespace)::PostTaskAndReplyRelay> >&&, std::__1::integer_sequence<unsigned long, 0ul>) + 99
18  libbase.dylib                       0x0000000119a10c29 base::internal::Invoker<base::internal::BindState<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), base::internal::UnretainedWrapper<base::(anonymous namespace)::PostTaskAndReplyRelay> >, void ()>::RunOnce(base::internal::BindStateBase*) + 57
19  libbase.dylib                       0x00000001196e353f base::OnceCallback<void ()>::Run() && + 95
20  libbase.dylib                       0x0000000119748014 base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) + 884
21  libbase.dylib                       0x0000000119826a16 base::internal::IncomingTaskQueue::RunTask(base::PendingTask*) + 246
22  libbase.dylib                       0x0000000119832f35 base::MessageLoop::RunTask(base::PendingTask*) + 901
23  libbase.dylib                       0x00000001198334a7 base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) + 103
24  libbase.dylib                       0x00000001198337f4 base::MessageLoop::DoWork() + 580
25  libbase.dylib                       0x0000000119841c72 base::MessagePumpCFRunLoopBase::RunWork() + 98
26  libbase.dylib                       0x0000000119841bfc ___ZN4base24MessagePumpCFRunLoopBase13RunWorkSourceEPv_block_invoke + 28
27  libbase.dylib                       0x00000001197e217a base::mac::CallWithEHFrame(void () block_pointer) + 10
28  libbase.dylib                       0x0000000119840ac5 base::MessagePumpCFRunLoopBase::RunWorkSource(void*) + 101
29  CoreFoundation                      0x00007fffb520c3e1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
30  CoreFoundation                      0x00007fffb51ed65c __CFRunLoopDoSources0 + 556
31  CoreFoundation                      0x00007fffb51ecb46 __CFRunLoopRun + 934
32  CoreFoundation                      0x00007fffb51ec544 CFRunLoopRunSpecific + 420
33  HIToolbox                           0x00007fffb474bebc RunCurrentEventLoopInMode + 240
34  HIToolbox                           0x00007fffb474bcf1 ReceiveNextEventCommon + 432
35  HIToolbox                           0x00007fffb474bb26 _BlockUntilNextEventMatchingListInModeWithFilter + 71
36  AppKit                              0x00007fffb2ce4a54 _DPSNextEvent + 1120
37  AppKit                              0x00007fffb34607ee -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2796
38  libchrome_dll.dylib                 0x0000000105ef363a __71-[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:]_block_invoke + 106
39  libbase.dylib                       0x00000001197e217a base::mac::CallWithEHFrame(void () block_pointer) + 10
40  libchrome_dll.dylib                 0x0000000105ef34d8 -[BrowserCrApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 248
41  AppKit                              0x00007fffb2cd93db -[NSApplication run] + 926
42  libbase.dylib                       0x00000001198433e8 base::MessagePumpNSApplication::DoRun(base::MessagePump::Delegate*) + 312
43  libbase.dylib                       0x0000000119840184 base::MessagePumpCFRunLoopBase::Run(base::MessagePump::Delegate*) + 116
44  libbase.dylib                       0x00000001198326bb base::MessageLoop::Run() + 299
45  libbase.dylib                       0x000000011992c966 base::RunLoop::Run() + 262
46  libchrome_dll.dylib                 0x0000000105f00c78 ChromeBrowserMainParts::MainMessageLoopRun(int*) + 376
47  libcontent.dylib                    0x000000012064cfd7 content::BrowserMainLoop::RunMainMessageLoopParts() + 455
48  libcontent.dylib                    0x0000000120657d2c content::BrowserMainRunnerImpl::Run() + 396
49  libcontent.dylib                    0x0000000120640abd content::BrowserMain(content::MainFunctionParams const&) + 397
50  libcontent.dylib                    0x0000000122ee25c9 content::RunNamedProcessTypeMain(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, content::MainFunctionParams const&, content::ContentMainDelegate*) + 585
51  libcontent.dylib                    0x0000000122ee3df4 content::ContentMainRunnerImpl::Run() + 1268
52  libcontent.dylib                    0x0000000122ee07fd content::ContentServiceManagerMainDelegate::RunEmbedderProcess() + 61
53  libembedder.dylib                   0x0000000119206387 service_manager::Main(service_manager::MainParams const&) + 1911
54  libcontent.dylib                    0x0000000122ee2339 content::ContentMain(content::ContentMainParams const&) + 89
55  libchrome_dll.dylib                 0x0000000103e02c9e ChromeMain + 270
56  Chromium                            0x0000000102009de6 main + 630
57  libdyld.dylib                       0x00007fffcadb7235 start + 1
58  ???                                 0x0000000000000001 0x0 + 1