#0  0x0000000000000000 in ?? ()
#1  0x00007fb0997df116 in extensions::LazyBackgroundTaskQueue::ProcessPendingTasks(ExtensionHost*, Profile*, Extension const*) ()
#2  0x00007fb0997df511 in extensions::LazyBackgroundTaskQueue::Observe(int, content::NotificationSource const&, content::NotificationDetails const&) ()
#3  0x00007fb09990a973 in NotificationServiceImpl::Notify(int, content::NotificationSource const&, content::NotificationDetails const&) ()
#4  0x00007fb099790362 in ExtensionHost::DidStopLoading() ()
#5  0x00007fb09996ac77 in WebContentsImpl::DidStopLoading() ()
#6  0x00007fb099930237 in content::RenderViewHostImpl::OnMessageReceived(IPC::Message const&) [clone .part.397] ()
#7  0x00007fb09992004e in RenderProcessHostImpl::OnMessageReceived(IPC::Message const&) [clone .part.189] ()
#8  0x00007fb0980da1a6 in IPC::ChannelProxy::Context::OnDispatchMessage(IPC::Message const&) ()
#9  0x00007fb098085399 in MessageLoop::RunTask(base::PendingTask const&) ()
#10 0x00007fb0980889db in MessageLoop::DeferOrRunPendingTask(base::PendingTask const&) ()
#11 0x00007fb098088fe3 in MessageLoop::DoWork() ()
#12 0x00007fb0980b7c59 in base::MessagePumpGlib::HandleDispatch() ()
#13 0x00007fb0980b7c9d in (anonymous namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*) ()
#14 0x00007fb095ecebb5 in g_main_dispatch (context=0x7fb09d119e70) at /build/buildd/glib2.0-2.34.0/./glib/gmain.c:2719
  [Error: /build/buildd/glib2.0-2.34.0/./glib/gmain.c was not found in source tree]
#15 g_main_context_dispatch (context=0x7fb09d119e70) at /build/buildd/glib2.0-2.34.0/./glib/gmain.c:3219
  [Error: /build/buildd/glib2.0-2.34.0/./glib/gmain.c was not found in source tree]
#16 0x00007fb095eceee8 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.34.0/./glib/gmain.c:5028
  [Error: /build/buildd/glib2.0-2.34.0/./glib/gmain.c was not found in source tree]
#17 0x00007fb09d119e70 in ?? ()
#18 0x0000000000000001 in ?? ()
#19 0x0000000000000000 in ?? ()