Added some public methods to web::NavigationController.

ios/web/navigation/navigation_manager_impl.h

 // 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.
 
 #ifndef IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_IMPL_H_
 #define IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 55 matching lines @@
   // TODO(stuartmorgan): Make these private once the logic triggering them moves
   // into this layer.
   void OnNavigationItemChanged();
   void OnNavigationItemCommitted();
 
   // Returns the transient item if any. This is an item which is removed and
   // discarded if any navigation occurs. Note that the returned item is owned
   // by the navigation manager and may be deleted at any time.
   NavigationItem* GetTransientItem() const;
 
-  // Returns the committed NavigationItem at |index|.
-  NavigationItem* GetItemAtIndex(size_t index) const;
-
   // Temporary accessors and content/ class pass-throughs.
   // TODO(stuartmorgan): Re-evaluate this list once the refactorings have
   // settled down.
   CRWSessionController* GetSessionController();
-  int GetCurrentEntryIndex() const;
   int GetLastCommittedEntryIndex() const;
-  int GetEntryCount() const;
   bool RemoveEntryAtIndex(int index);
   int GetPendingEntryIndex() const;
   void LoadURL(const GURL& url,
                const Referrer& referrer,
                ui::PageTransition type);
   bool CanGoBack() const;
   bool CanGoForward() const;
   void GoBack();
   void GoForward();
 
@@ skipping 12 matching lines @@
 
   // NavigationManager:
   BrowserState* GetBrowserState() const override;
   WebState* GetWebState() const override;
   NavigationItem* GetVisibleItem() const override;
   NavigationItem* GetLastCommittedItem() const override;
   NavigationItem* GetPendingItem() const override;
   void DiscardNonCommittedItems() override;
   void AddTransientURLRewriter(
       BrowserURLRewriter::URLRewriter rewriter) override;
+  int GetEntryCount() const override;
+  NavigationItem* GetItemAtIndex(size_t index) const override;
+  int GetCurrentEntryIndex() const override;
 
   // Returns the current list of transient url rewriters, passing ownership to
   // the caller.
   // TODO(kkhorimoto): remove once NavigationItem creation occurs in this class.
   scoped_ptr<std::vector<BrowserURLRewriter::URLRewriter>>
   GetTransientURLRewriters();
 
   // Called to reset the transient url rewriter list.
   void RemoveTransientURLRewriters();
 
@@ skipping 19 matching lines @@
   // List of transient url rewriters added by |AddTransientURLRewriter()|.
   scoped_ptr<std::vector<BrowserURLRewriter::URLRewriter>>
       transient_url_rewriters_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationManagerImpl);
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_NAVIGATION_NAVIGATION_MANAGER_IMPL_H_