background_widget_  791 ash/wm/dock/docked_window_layout_manager.cc   background_widget_->SetBackgroundType(background_type, change_type);
background_widget_ 1245 ash/wm/dock/docked_window_layout_manager.cc   background_widget_->SetBackgroundBounds(background_bounds, alignment_);
background_widget_ 1247 ash/wm/dock/docked_window_layout_manager.cc     background_widget_->Show();
background_widget_ 1249 ash/wm/dock/docked_window_layout_manager.cc     background_widget_->Hide();
background_widget_  303 ash/wm/dock/docked_window_layout_manager.h   scoped_ptr<DockedBackgroundWidget> background_widget_;