Comment 6 for bug 1450243

stack trace:

#0 0x00007fffc8232268 in base::DeleteHelper<oxide::WebPopupMenu>::DoDelete (object=0x1801900)
    at ../../../../third_party/chromium/src/base/sequenced_task_runner_helpers.h:40
#1 0x00007fffc82589a9 in Run (this=0x7fffffffd3e8) at ../../../../third_party/chromium/src/base/callback.h:396
#2 base::debug::TaskAnnotator::RunTask (this=this@entry=0x107cf00,
    queue_function=queue_function@entry=0x7fffcb080def "MessageLoop::PostTask",
    run_function=run_function@entry=0x7fffcb080e0e "MessageLoop::RunTask", pending_task=...)
    at ../../../../third_party/chromium/src/base/debug/task_annotator.cc:63
#3 0x00007fffc827a364 in base::MessageLoop::RunTask (this=this@entry=0x107cdb0, pending_task=...)
    at ../../../../third_party/chromium/src/base/message_loop/message_loop.cc:445
#4 0x00007fffc827a641 in base::MessageLoop::DeferOrRunPendingTask (this=this@entry=0x107cdb0, pending_task=...)
    at ../../../../third_party/chromium/src/base/message_loop/message_loop.cc:454
#5 0x00007fffc827ab3b in base::MessageLoop::DoWork (this=0x107cdb0)
    at ../../../../third_party/chromium/src/base/message_loop/message_loop.cc:566
#6 0x00007fffc81f2baa in oxide::qt::MessagePump::customEvent (this=0x107ae50, event=<optimized out>)
    at ../../../../qt/core/browser/oxide_qt_message_pump.cc:60
#7 0x00007ffff67956f3 in QObject::event (this=0x107ae50, e=<optimized out>) at kernel/qobject.cpp:1267
#8 0x00007ffff706db2c in QApplicationPrivate::notify_helper (this=0x416370, receiver=0x107ae50, e=0x3182270)
    at kernel/qapplication.cpp:3720
#9 0x00007ffff7073000 in QApplication::notify (this=0x7fffffffdc20, receiver=0x107ae50, e=0x3182270)
    at kernel/qapplication.cpp:3503
#10 0x00007ffff6763c2b in QCoreApplication::notifyInternal (this=0x7fffffffdc20, receiver=0x107ae50,
    event=event@entry=0x3182270) at kernel/qcoreapplication.cpp:935
#11 0x00007ffff6765c9b in sendEvent (event=0x3182270, receiver=<optimized out>)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#12 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0,
    data=0x4164e0) at kernel/qcoreapplication.cpp:1552
#13 0x00007ffff6766298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0,
    event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#14 0x00007ffff67bc843 in postEventSourceDispatch (s=0x4f5450) at kernel/qeventdispatcher_glib.cpp:271
#15 0x00007ffff515ac3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007ffff515af20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007ffff515afcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ffff67bcc57 in QEventDispatcherGlib::processEvents (this=0x5253f0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:418
#19 0x00007ffff67613e2 in QEventLoop::exec (this=this@entry=0x7fffffffda50, flags=..., flags@entry=...)
    at kernel/qeventloop.cpp:204
#20 0x00007ffff676902c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#21 0x0000000000404098 in main (argc=2, argv=0x7fffffffd2c0) at main.cpp:531