Remove CRWSessionEntry.

ios/web/navigation/navigation_item_impl_list.h

 // Copyright 2017 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_NAVIGATION_NAVIGATION_ITEM_IMPL_LIST_H_
 #define IOS_WEB_NAVIGATION_NAVIGATION_ITEM_IMPL_LIST_H_
 
 #import "ios/web/public/navigation_item_list.h"
 
 namespace web {
 
 class NavigationItemImpl;
 
 // Convenience typedef for a list of raw NavigationItem pointers.
 typedef std::vector<NavigationItemImpl*> NavigationItemImplList;
 
 // Convenience typedef for a list of scoped NavigationItem pointers.
 typedef std::vector<std::unique_ptr<NavigationItemImpl>>
     ScopedNavigationItemImplList;
 
 // Creates a ScopedNavigationItemImplList from |scoped_item_list|.  Ownership
 // of the NavigationItems in |scoped_item_list| is transferred to the returned
 // value.
 ScopedNavigationItemImplList CreateScopedNavigationItemImplList(
     ScopedNavigationItemList scoped_item_list);
 
+// Creates a NavigationItemList from |scoped_item_list|.
+NavigationItemList CreateNavigationItemList(
+    const ScopedNavigationItemImplList& scoped_item_list);
+
 }  // namespace web
 
 #endif  // IOS_WEB_NAVIGATION_NAVIGATION_ITEM_IMPL_LIST_H_