Deprecated WebStateObserver::NavigationItemChanged.

ios/web/public/web_state/web_state_observer.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_OBSERVER_H_
 #define IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_OBSERVER_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 20 matching lines @@
  public:
   // Returns the web state associated with this observer.
   WebState* web_state() const { return web_state_; }
 
   // This method is invoked when a load request is registered.
   virtual void ProvisionalNavigationStarted(const GURL& url) {}
 
   // This method is invoked when committed navigation items have been pruned.
   virtual void NavigationItemsPruned(size_t pruned_item_count) {}
 
-  // This method is invoked when a navigation item has changed.
+  // This method is invoked either when NavigationItem's titile did change or
+  // when window.location.replace JavaScript API was called.
+  // DEPRECATED. Use |TitleWasSet| to listen for title changes and
+  // |DidFinishNavigation| for |window.location.replace|.
+  // TODO(crbug.com/720786): Remove this method.
   virtual void NavigationItemChanged() {}
 
   // This method is invoked when a new non-pending navigation item is created.
   // This corresponds to one NavigationManager item being created
   // (in the case of new navigations) or renavigated to (for back/forward
   // navigations).
   virtual void NavigationItemCommitted(
       const LoadCommittedDetails& load_details) {}
 
   // Called when a navigation finished in the WebState. This happens when a
@@ skipping 90 matching lines @@
   void ResetWebState();
 
   WebState* web_state_;
 
   DISALLOW_COPY_AND_ASSIGN(WebStateObserver);
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_WEB_STATE_WEB_STATE_OBSERVER_H_