HandleDestroying  175 ui/views/widget/desktop_aura/desktop_window_tree_host_win.h   virtual void HandleDestroying() OVERRIDE;
HandleDestroying 1342 ui/views/win/hwnd_message_handler.cc   delegate_->HandleDestroying();
HandleDestroying  130 ui/views/win/hwnd_message_handler_delegate.h   virtual void HandleDestroying() = 0;