Version: M52
OS: Linux

What steps will reproduce the problem?
(1) With an old checkout (~1 week old), navigate to appr.tc or go/meet. (It's possible that you have to induce a Crome crash during this step.)
(2) Checkout and build a recent revision e.g 2fc56b4da5f772ee7e7c71a544f19ed936edcef8
(3) Type the same address in the omnibox.

What is the expected output?
Chrome lets you finish typing and navigates to the new page.

What do you see instead?
Chrome crashes before you hit enter.

[27592:27620:0513/144548:FATAL:http_vary_data.cc(73)] Check failed: false. 
#0 0x7f4475477cee base::debug::StackTrace::StackTrace()
#1 0x7f44754b778f logging::LogMessage::~LogMessage()
#2 0x7f446b2e9535 net::HttpVaryData::MatchesRequest()
#3 0x7f446b6e3ed1 net::HttpCache::Transaction::RequiresValidation()
#4 0x7f446b6e0298 net::HttpCache::Transaction::BeginCacheValidation()
#5 0x7f446b6df957 net::HttpCache::Transaction::BeginPartialCacheValidation()
#6 0x7f446b6db64f net::HttpCache::Transaction::DoCacheDispatchValidation()
#7 0x7f446b6d4f53 net::HttpCache::Transaction::DoLoop()
#8 0x7f446b6d3d2b net::HttpCache::Transaction::OnIOComplete()
#9 0x7f446a12276b _ZN4base8internal15RunnableAdapterIM29ChromeDownloadManagerDelegateFvjEE3RunIPS2_JjEEEvOT_DpOT0_
#10 0x7f446a1226b5 _ZN4base8internal12InvokeHelperILb1EvNS0_15RunnableAdapterIM29ChromeDownloadManagerDelegateFvjEEEE8MakeItSoINS_7WeakPtrIS3_EEJjEEEvS6_T_DpOT0_
#11 0x7f446b6e67bd _ZN4base8internal7InvokerINS_13IndexSequenceIJLm0EEEENS0_9BindStateINS0_15RunnableAdapterIMN3net9HttpCache11TransactionEFviEEEFvPS8_iEJNS_7WeakPtrIS8_EEEEENS0_12InvokeHelperILb1EvSB_EEFviEE3RunEPNS0_13BindStateBaseEOi
#12 0x7f446a0ccb92 base::Callback<>::Run()
#13 0x7f446a0d9197 _ZN4base8internal12InvokeHelperILb0EvNS_8CallbackIFviELNS0_8CopyModeE1EEEE8MakeItSoIJRKiEEEvS5_DpOT_
#14 0x7f446a0d9154 _ZN4base8internal7InvokerINS_13IndexSequenceIJLm0EEEENS0_9BindStateINS_8CallbackIFviELNS0_8CopyModeE1EEES6_JRiEEENS0_12InvokeHelperILb0EvS8_EEFvvEE3RunEPNS0_13BindStateBaseE
#15 0x7f4469fb8e7e base::Callback<>::Run()
#16 0x7f447547acfe base::debug::TaskAnnotator::RunTask()
#17 0x7f44754cd8fc base::MessageLoop::RunTask()
#18 0x7f44754cdb98 base::MessageLoop::DeferOrRunPendingTask()
#19 0x7f44754cddf2 base::MessageLoop::DoWork()
#20 0x7f44754e1b8e base::MessagePumpLibevent::Run()
#21 0x7f44754cd2ef base::MessageLoop::RunHandler()
#22 0x7f447554bad4 base::RunLoop::Run()
#23 0x7f44754cc364 base::MessageLoop::Run()
#24 0x7f44755ad189 base::Thread::Run()
#25 0x7f446deac2e6 content::BrowserThreadImpl::IOThreadRun()
#26 0x7f446deac68e content::BrowserThreadImpl::Run()
#27 0x7f44755ad4d9 base::Thread::ThreadMain()
#28 0x7f447559b39a base::(anonymous namespace)::ThreadFunc()
#29 0x7f4464739182 start_thread
#30 0x7f44612bc47d clone

Aborted (core dumped)