BT_CLOSE_BUTTON 193 chrome/browser/first_run/try_chrome_dialog_view.cc close_button->set_tag(BT_CLOSE_BUTTON); BT_CLOSE_BUTTON 257 chrome/browser/first_run/try_chrome_dialog_view.cc cancel_button->set_tag(BT_CLOSE_BUTTON); BT_CLOSE_BUTTON 345 chrome/browser/first_run/try_chrome_dialog_view.cc } else if (sender->tag() == BT_CLOSE_BUTTON) {