Revert of Updated tab history classes to use NavigationItemLists.

ios/chrome/browser/ui/history/tab_history_view_controller.h

Index: ios/chrome/browser/ui/history/tab_history_view_controller.h
diff --git a/ios/chrome/browser/ui/history/tab_history_view_controller.h b/ios/chrome/browser/ui/history/tab_history_view_controller.h
index 5343bc270d9d0554400dd246dc0d7b7a9c064c0b..cc7877e4e149de9d6e3a7814ca0bcec9ccc14284 100644
--- a/ios/chrome/browser/ui/history/tab_history_view_controller.h
+++ b/ios/chrome/browser/ui/history/tab_history_view_controller.h
@@ -7,21 +7,12 @@
 
 #import <UIKit/UIKit.h>
 
-#include "ios/web/public/navigation_item_list.h"
-
-// View controller for displaying a list of NavigationItems in a table.
+// View controller for displaying a list of CRWSessionEntry objects in a table.
 @interface TabHistoryViewController : UICollectionViewController
 
-// Designated initializer that takes a NavigationItemList.
-- (instancetype)initWithItems:(const web::NavigationItemList&)items
-    NS_DESIGNATED_INITIALIZER;
-
-// TabHistoryViewControllers must be initialized with |-initWithItems:|.
-- (instancetype)initWithCoder:(NSCoder*)aDecoder NS_UNAVAILABLE;
-- (instancetype)initWithCollectionViewLayout:(UICollectionViewLayout*)layout
-    NS_UNAVAILABLE;
-- (instancetype)initWithNibName:(NSString*)nibNameOrNil
-                         bundle:(NSBundle*)nibBundleOrNil NS_UNAVAILABLE;
+// TODO(crbug.com/546355): Convert this class to use an array of
+//    NavigationEntries.
+@property(nonatomic, strong) NSArray* sessionEntries;
 
 // Returns the optimal height needed to display the session entries.
 // The height returned is usually less than the |suggestedHeight| unless