Comment 2 for bug 1702407

@Gareth Evans

Your suggestion, and without copying back the old Bookmarks, works only the first time, when you close and reopen the browser it crashes again, with:

Received signal 11 SEGV_MAPERR 000000000008
#0 0x0000b762af0a base::debug::StackTrace::StackTrace()
#1 0x0000b762a83a base::debug::StackTrace::StackTrace()
#2 0x0000b762b388 <unknown>
#3 0x0000b77bec20 ([vdso]+0xc1f)
#4 0x00008055948a <unknown>
#5 0x00008055c01b <unknown>
#6 0x00008055c7d4 <unknown>
#7 0x00008055cb1b <unknown>
#8 0x000080555586 <unknown>
#9 0x0000b76afe2e <unknown>
#10 0x0000b76afdb3 <unknown>
#11 0x0000b762c80b base::debug::TaskAnnotator::RunTask()
#12 0x0000b7658f3b base::MessageLoop::RunTask()
#13 0x0000b765a292 base::MessageLoop::DeferOrRunPendingTask()
#14 0x0000b765b399 base::MessageLoop::DoWork()
#15 0x0000b765bfbd base::MessagePumpLibevent::Run()
#16 0x0000b7658304 base::MessageLoop::RunHandler()
#17 0x0000b76855dd base::RunLoop::Run()
#18 0x0000b76b5c61 base::Thread::ThreadMain()
#19 0x0000b76afcdf <unknown>
#20 0x0000b7786295 start_thread
#21 0x0000afd6705e clone
  gs: 00000033 fs: 00000000 es: 0000007b ds: 0000007b
 edi: 00000000 esi: a824bd60 ebp: 8f1507f8 esp: 8f150780
 ebx: 835cb528 edx: 8f150714 ecx: a824bcb0 eax: 00000000
 trp: 0000000e err: 00000004 ip: 8055948a cs: 00000073
 efl: 00210282 usp: 8f150780 ss: 0000007b
[end of stack trace]