PanelExpansionStateChanging 1010 chrome/browser/ui/gtk/panels/panel_gtk.cc void PanelGtk::PanelExpansionStateChanging(
PanelExpansionStateChanging  628 chrome/browser/ui/views/panels/panel_view.cc void PanelView::PanelExpansionStateChanging(Panel::ExpansionState old_state,