#0  0x00007ffff5fe8f4c in WTF::OwnPtr<WebCore::FocusController>::get (
    this=0x20) at ../../JavaScriptCore/wtf/OwnPtr.h:54
#1  0x00007ffff5fe87a0 in WebCore::Page::focusController (this=0x0)
    at ../../WebCore/page/Page.h:144
#2  0x00007ffff6909438 in webkit_web_view_focus_out_event (widget=0x45e4d0, 
    event=0x5336a0) at ../../WebKit/gtk/webkit/webkitwebview.cpp:683
#3  0x00007ffff571f538 in _gtk_marshal_BOOLEAN__BOXED (closure=0x4396f0, 
    return_value=0x7fffffffcf10, n_param_values=<value optimized out>, 
    param_values=0x4436c0, invocation_hint=<value optimized out>, 
    marshal_data=0x7ffff69093f1) at /gtk+2.0-2.18.6/gtk/gtkmarshalers.c:84
#4  0x00007ffff337544e in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#5  0x00007ffff33891dd in ?? () from /usr/lib/libgobject-2.0.so.0
#6  0x00007ffff338a76a in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007ffff338add3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#8  0x00007ffff58266cf in gtk_widget_event_internal (widget=0x45e4d0, 
    event=0x5336a0) at /gtk+2.0-2.18.6/gtk/gtkwidget.c:4767
#9  0x00007ffff5835723 in do_focus_change (widget=0x45e4d0, in=0)
    at /gtk+2.0-2.18.6/gtk/gtkwindow.c:5256
#10 0x00007ffff58360d2 in gtk_window_real_set_focus (window=0x432a10, 
    focus=0x0) at /gtk+2.0-2.18.6/gtk/gtkwindow.c:5458
#11 0x00007ffff337544e in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#12 0x00007ffff33891dd in ?? () from /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff338a8cf in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#14 0x00007ffff338add3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#15 0x00007ffff583c96d in _gtk_window_unset_focus_and_default (
    window=0x432a10, widget=0x45e4d0) at /gtk+2.0-2.18.6/gtk/gtkwindow.c:5540
#16 0x00007ffff58350e3 in IA__gtk_widget_unparent (widget=0x45e4d0)
    at /gtk+2.0-2.18.6/gtk/gtkwidget.c:2879
#17 0x00007ffff5665110 in gtk_bin_remove (container=0x432a10, child=0x42c440)
    at /gtk+2.0-2.18.6/gtk/gtkbin.c:109
#18 0x00007ffff337544e in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#19 0x00007ffff3388e2c in ?? () from /usr/lib/libgobject-2.0.so.0
#20 0x00007ffff338a8cf in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#21 0x00007ffff338add3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0x00007ffff5830215 in gtk_widget_dispose (object=0x45e4d0)
    at /gtk+2.0-2.18.6/gtk/gtkwidget.c:8362
#23 0x00007ffff690a7cb in webkit_web_view_dispose (object=0x45e4d0)