PANEL_CLOSED      416 chrome/browser/ui/panels/panel_manager.cc   collection->RemovePanel(panel, PanelCollection::PANEL_CLOSED);
PANEL_CLOSED      268 chrome/browser/ui/panels/stacked_panel_collection.cc   if (reason == PanelCollection::PANEL_CLOSED && is_top) {
PANEL_CLOSED      290 chrome/browser/ui/panels/stacked_panel_collection.cc   if (reason == PanelCollection::PANEL_CLOSED &&
PANEL_CLOSED      307 chrome/browser/ui/panels/stacked_panel_collection.cc   else if (reason == PanelCollection::PANEL_CLOSED)