NotifyRemovingFromRootWindow 1024 ui/aura/window.cc     child->NotifyRemovingFromRootWindow(new_root_window);
NotifyRemovingFromRootWindow 1198 ui/aura/window.cc     (*it)->NotifyRemovingFromRootWindow(new_root);
NotifyRemovingFromRootWindow  423 ui/aura/window.h   void NotifyRemovingFromRootWindow(Window* new_root);