Steps to reproduce:

1) Go to chrome://settings/cookies
2) Click "Remove All"
3) Observe the following stack trace (DCHECK failure):

[6073:6073:0404/143842:FATAL:cookies_view_handler.cc(188)] Check failed: batch_update_. 
#0 0x7f82a7ddd4de base::debug::StackTrace::StackTrace()
#1 0x7f82a7e38d1f logging::LogMessage::~LogMessage()
#2 0x7f82aa444c62 options::CookiesViewHandler::TreeModelEndBatch()
#3 0x7f82a93217ca CookiesTreeModel::MaybeNotifyBatchesEnded()
#4 0x7f82a9321724 CookiesTreeModel::NotifyObserverEndBatch()
#5 0x7f82a9321d64 CookiesTreeModel::DeleteAllStoredObjects()
#6 0x7f82aa44435b options::CookiesViewHandler::RemoveAll()
#7 0x7f82a8bb91e1 _ZN4base8internal15RunnableAdapterIM34PermissionBubbleMediaAccessHandlerFvPN7content11WebContentsEEE3RunIJRKS5_EEEvPS2_DpOT_
#8 0x7f82a8bb9151 _ZN4base8internal12InvokeHelperILb0EvNS0_15RunnableAdapterIM34PermissionBubbleMediaAccessHandlerFvPN7content11WebContentsEEEEE8MakeItSoIJPS3_RKS6_EEEvS9_DpOT_
#9 0x7f82aa44580d _ZN4base8internal7InvokerINS_13IndexSequenceIJLm0EEEENS0_9BindStateINS0_15RunnableAdapterIMN7options18CookiesViewHandlerEFvPKNS_9ListValueEEEEFvPS7_SA_EJNS0_17UnretainedWrapperIS7_EEEEENS0_12InvokeHelperILb0EvSD_EEFvSA_EE3RunEPNS0_13BindStateBaseEOSA_
#10 0x7f82a2617db6 base::Callback<>::Run()
#11 0x7f82a33552a8 content::WebUIImpl::ProcessWebUIMessage()
#12 0x7f82aa1983fa UberUI::OverrideHandleWebUIMessage()
#13 0x7f82a33551e5 content::WebUIImpl::ProcessWebUIMessage()
#14 0x7f82a3353e5b content::WebUIImpl::OnWebUISend()
#15 0x7f82a33202fb _ZN4base20DispatchToMethodImplIPN7content15WebContentsImplEMS2_FvRK4GURLRKSsRKNS_9ListValueEEJS4_SsS9_EJLm0ELm1ELm2EEEEvRKT_T0_RKSt5tupleIJDpT1_EENS_13IndexSequenceIJXspT2_EEEE
#16 0x7f82a3320225 _ZN4base16DispatchToMethodIPN7content15WebContentsImplEMS2_FvRK4GURLRKSsRKNS_9ListValueEEJS4_SsS9_EEEvRKT_T0_RKSt5tupleIJDpT1_EE
#17 0x7f82a3357abf _ZN3IPC16DispatchToMethodIN7content9WebUIImplEMS2_FvRK4GURLRKSsRKN4base9ListValueEEvSt5tupleIJS3_SsS9_EEEEvPT_T0_PT1_RKT2_
#18 0x7f82a3355d7b _ZN3IPC8MessageTI26ViewHostMsg_WebUISend_MetaSt5tupleIJ4GURLSsN4base9ListValueEEEvE8DispatchIN7content9WebUIImplESA_vMSA_FvRKS3_RKSsRKS5_EEEbPKNS_7MessageEPT_PT0_PT1_T2_
#19 0x7f82a3353c72 content::WebUIImpl::OnMessageReceived()
#20 0x7f82a32f4621 content::WebContentsImpl::OnMessageReceived()
#21 0x7f82a32f44c4 content::WebContentsImpl::OnMessageReceived()
#22 0x7f82a301b8da content::RenderViewHostImpl::OnMessageReceived()
#23 0x7f82a302f853 content::RenderWidgetHostImpl::OnMessageReceived()
#24 0x7f82a2ff6bb3 content::RenderProcessHostImpl::OnMessageReceived()
#25 0x7f82a05a0008 IPC::ChannelProxy::Context::OnDispatchMessage()
#26 0x7f82a05a468f _ZN4base8internal15RunnableAdapterIMN3IPC12ChannelProxy7ContextEFvRKNS2_7MessageEEE3RunIS4_JS7_EEEvRK13scoped_refptrIT_EDpOT0_
#27 0x7f82a05a45ae _ZN4base8internal12InvokeHelperILb0EvNS0_15RunnableAdapterIMN3IPC12ChannelProxy7ContextEFvRKNS3_7MessageEEEEE8MakeItSoIJRK13scoped_refptrIS5_ES8_EEEvSB_DpOT_
#28 0x7f82a05a455d _ZN4base8internal7InvokerINS_13IndexSequenceIJLm0ELm1EEEENS0_9BindStateINS0_15RunnableAdapterIMN3IPC12ChannelProxy7ContextEFvRKNS6_7MessageEEEEFvPS8_SB_EJSF_SB_EEENS0_12InvokeHelperILb0EvSE_EEFvvEE3RunEPNS0_13BindStateBaseE
#29 0x7f82a7dc4a6e base::Callback<>::Run()
#30 0x7f82a7de299e base::debug::TaskAnnotator::RunTask()
#31 0x7f82a7e550cf base::MessageLoop::RunTask()
#32 0x7f82a7e55358 base::MessageLoop::DeferOrRunPendingTask()
#33 0x7f82a7e55522 base::MessageLoop::DoWork()
#34 0x7f82a7d9e3ec base::MessagePumpGlib::HandleDispatch()
#35 0x7f82a7d9ebb1 base::(anonymous namespace)::WorkSourceDispatch()
#36 0x7f8296a92e04 g_main_context_dispatch
#37 0x7f8296a93048 <unknown>
#38 0x7f8296a930ec g_main_context_iteration
#39 0x7f82a7d9e4ef base::MessagePumpGlib::Run()
#40 0x7f82a7e54aff base::MessageLoop::RunHandler()
#41 0x7f82a7ed5854 base::RunLoop::Run()
#42 0x7f82a934f70f ChromeBrowserMainParts::MainMessageLoopRun()
#43 0x7f82a2811cc9 content::BrowserMainLoop::RunMainMessageLoopParts()
#44 0x7f82a281bbe5 content::BrowserMainRunnerImpl::Run()
#45 0x7f82a280b9c6 content::BrowserMain()
#46 0x7f82a2606a06 content::RunNamedProcessTypeMain()
#47 0x7f82a2609059 content::ContentMainRunnerImpl::Run()
#48 0x7f82a2605d92 content::ContentMain()
#49 0x7f82a8ad4556 ChromeMain
#50 0x7f82a8ad44e2 main
#51 0x7f8294ef8ec5 __libc_start_main
#52 0x7f82a8ad43e5 <unknown>

Will this become obsolete with MD settings?