CHANGE_REASON_USER_GESTURE 305 chrome/browser/extensions/api/tabs/tabs_event_router.cc reason & CHANGE_REASON_USER_GESTURE CHANGE_REASON_USER_GESTURE 1284 chrome/browser/ui/tabs/tab_strip_model.cc ? TabStripModelObserver::CHANGE_REASON_USER_GESTURE CHANGE_REASON_USER_GESTURE 114 chrome/browser/ui/tabs/tab_strip_model_order_controller.cc if ((reason & CHANGE_REASON_USER_GESTURE) && new_opener != old_opener && CHANGE_REASON_USER_GESTURE 496 chrome/browser/ui/tabs/tab_strip_model_unittest.cc s2.change_reason = TabStripModelObserver::CHANGE_REASON_USER_GESTURE;