Remove CRWSessionEntry.

ios/web/navigation/navigation_manager_impl.mm

 // Copyright 2013 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.
 
 #import "ios/web/navigation/navigation_manager_impl.h"
 
 #include <stddef.h>
 
 #include <utility>
 
 #include "base/logging.h"
 #import "ios/web/navigation/crw_session_controller+private_constructors.h"
 #import "ios/web/navigation/crw_session_controller.h"
 #import "ios/web/navigation/navigation_item_impl.h"
+#import "ios/web/navigation/navigation_item_impl_list.h"
 #import "ios/web/navigation/navigation_manager_delegate.h"
 #include "ios/web/navigation/navigation_manager_facade_delegate.h"
 #include "ios/web/public/load_committed_details.h"
 #import "ios/web/public/navigation_item.h"
 #import "ios/web/public/web_client.h"
 #import "ios/web/public/web_state/web_state.h"
 #include "ui/base/page_transition_types.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ skipping 188 matching lines @@
       pending_item->SetUserAgentType(UserAgentType::DESKTOP);
   }
   override_desktop_user_agent_for_next_pending_item_ = false;
 }
 
 NavigationItem* NavigationManagerImpl::GetLastUserItem() const {
   return [session_controller_ lastUserItem];
 }
 
 NavigationItemList NavigationManagerImpl::GetItems() const {
-  return [session_controller_ items];
+  return CreateNavigationItemList([session_controller_ items]);
 }
 
 BrowserState* NavigationManagerImpl::GetBrowserState() const {
   return browser_state_;
 }
 
 WebState* NavigationManagerImpl::GetWebState() const {
   return delegate_->GetWebState();
 }
 
@@ skipping 30 matching lines @@
     BrowserURLRewriter::URLRewriter rewriter) {
   DCHECK(rewriter);
   if (!transient_url_rewriters_) {
     transient_url_rewriters_.reset(
         new std::vector<BrowserURLRewriter::URLRewriter>());
   }
   transient_url_rewriters_->push_back(rewriter);
 }
 
 int NavigationManagerImpl::GetItemCount() const {
-  return [session_controller_ itemCount];
+  return [session_controller_ items].size();
 }
 
 NavigationItem* NavigationManagerImpl::GetItemAtIndex(size_t index) const {
   return [session_controller_ itemAtIndex:index];
 }
 
 int NavigationManagerImpl::GetCurrentItemIndex() const {
   return [session_controller_ currentNavigationIndex];
 }
 
@@ skipping 154 matching lines @@
   ui::PageTransition transition = GetItemAtIndex(index)->GetTransitionType();
   return transition & ui::PAGE_TRANSITION_IS_REDIRECT_MASK;
 }
 
 NavigationItem* NavigationManagerImpl::GetLastCommittedNonAppSpecificItem()
     const {
   int index = GetCurrentItemIndex();
   if (index == -1)
     return nullptr;
   WebClient* client = GetWebClient();
-  NavigationItemList items = [session_controller_ items];
+  const ScopedNavigationItemImplList& items = [session_controller_ items];
   while (index >= 0) {
-    NavigationItem* item = items[index--];
+    NavigationItem* item = items[index--].get();
     if (!client->IsAppSpecificURL(item->GetVirtualURL()))
       return item;
   }
   return nullptr;
 }
 
 }  // namespace web