| Index: ios/chrome/browser/tabs/tab_parenting_observer.mm | 
| diff --git a/ios/chrome/browser/tabs/tab_parenting_observer.mm b/ios/chrome/browser/tabs/tab_parenting_observer.mm | 
| index 4dbcef482897676e8f631ffb2351961206604c4c..64867fe4eedb02555e1418ee8e4c9b1d50c80b56 100644 | 
| --- a/ios/chrome/browser/tabs/tab_parenting_observer.mm | 
| +++ b/ios/chrome/browser/tabs/tab_parenting_observer.mm | 
| @@ -30,18 +30,9 @@ void TabParentingObserver::WebStateInsertedAt(WebStateList* web_state_list, | 
| OnWebStateParented(web_state); | 
| } | 
|  | 
| -void TabParentingObserver::WebStateMoved(WebStateList* web_state_list, | 
| -                                         web::WebState* web_state, | 
| -                                         int from_index, | 
| -                                         int to_index) {} | 
| - | 
| void TabParentingObserver::WebStateReplacedAt(WebStateList* web_state_list, | 
| web::WebState* old_web_state, | 
| web::WebState* new_web_state, | 
| int index) { | 
| OnWebStateParented(new_web_state); | 
| } | 
| - | 
| -void TabParentingObserver::WebStateDetachedAt(WebStateList* web_state_list, | 
| -                                              web::WebState* web_state, | 
| -                                              int index) {} | 
|  |