Removed use of CRWSessionController from NativeAppNavigationUtilsTest.

ios/web/public/test/fakes/test_navigation_manager.h

 // Copyright 2016 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_TEST_FAKES_TEST_NAVIGATION_MANAGER_H_
 #define IOS_WEB_PUBLIC_TEST_FAKES_TEST_NAVIGATION_MANAGER_H_
 
+#import "ios/web/public/navigation_item.h"
+#include "ios/web/public/navigation_item_list.h"
 #import "ios/web/public/navigation_manager.h"
+#include "ui/base/page_transition_types.h"
 
 namespace web {
 
 // A minimal implementation of web::NavigationManager that raises NOTREACHED()
 // on most calls.
 class TestNavigationManager : public web::NavigationManager {
  public:
   TestNavigationManager();
   ~TestNavigationManager() override;
   BrowserState* GetBrowserState() const override;
@@ skipping 16 matching lines @@
   bool CanGoBack() const override;
   bool CanGoForward() const override;
   bool CanGoToOffset(int offset) const override;
   void GoBack() override;
   void GoForward() override;
   void GoToIndex(int index) override;
   void Reload(ReloadType reload_type, bool check_for_reposts) override;
   void OverrideDesktopUserAgentForNextPendingItem() override;
 
   // Setters for test data.
+  // Sets a value for last committed item that will be returned by
+  // GetLastCommittedItem().
   void SetLastCommittedItem(NavigationItem* item);
+
+  // Sets a value for pending item that will be returned by GetPendingItem().
   void SetPendingItem(NavigationItem* item);
+
+  // Sets a value for visible item that will be returned by GetVisibleItem().
   void SetVisibleItem(NavigationItem* item);
 
+  // Adds an item to items_. Affects the return values for, GetItemCount(),
+  // GetItemAtIndex(), and GetCurrentItemIndex().
+  void AddItem(const GURL& url, ui::PageTransition transition);
+
+  // Sets the index to be returned by GetCurrentItemIndex(). |index| must be
+  // either -1 or between 0 and GetItemCount()-1, inclusively.
+  void SetCurrentItemIndex(const int index);
+
  private:
+  // A list of items constructed by calling AddItem().
+  web::ScopedNavigationItemList items_;
+  int items_index_;
+  // Individual backing instance variables for Set* test set up methods.
   NavigationItem* pending_item_;
   NavigationItem* last_committed_item_;
   NavigationItem* visible_item_;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_TEST_FAKES_TEST_NAVIGATION_MANAGER_H_