Removed use of CRWSessionController from NativeAppNavigationUtilsTest.

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

Index: ios/web/public/test/fakes/test_navigation_manager.h
diff --git a/ios/web/public/test/fakes/test_navigation_manager.h b/ios/web/public/test/fakes/test_navigation_manager.h
index e36ebb72ecd50381a8c04c4e8822a63681a99e33..758b29637fe68c33141fba097b638104ef97b06c 100644
--- a/ios/web/public/test/fakes/test_navigation_manager.h
+++ b/ios/web/public/test/fakes/test_navigation_manager.h
@@ -5,7 +5,10 @@
 #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 {
 
@@ -42,11 +45,29 @@ class TestNavigationManager : public web::NavigationManager {
   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_;