Add GetOriginalRequestURL() to NavigationItem interface.

ios/web/web_state/ui/crw_web_controller.mm

 // Copyright 2012 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/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #import <objc/runtime.h>
 #include <stddef.h>
@@ skipping 2175 matching lines @@
   } else if (_requireReloadOnDisplay && _webView) {
     _requireReloadOnDisplay = NO;
     [self addPlaceholderOverlay];
     [self loadCurrentURL];
   }
 }
 
 - (BOOL)shouldReload:(const GURL&)destinationURL
           transition:(ui::PageTransition)transition {
   // Do a reload if the user hits enter in the address bar or re-types a URL.
-  CRWSessionController* sessionController =
-      _webStateImpl->GetNavigationManagerImpl().GetSessionController();
   web::NavigationItem* item =
       _webStateImpl->GetNavigationManagerImpl().GetVisibleItem();
   return (transition & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR) && item &&
          (destinationURL == item->GetURL() ||
-          destinationURL == [sessionController currentEntry].originalUrl);
+          destinationURL == item->GetOriginalRequestURL());
 }
 
 // Reload either the web view or the native content depending on which is
 // displayed.
 - (void)reloadInternal {
   // Clear last user interaction.
   // TODO(crbug.com/546337): Move to after the load commits, in the subclass
   // implementation. This will be inaccurate if the reload fails or is
   // cancelled.
   _lastUserInteraction.reset();
@@ skipping 3588 matching lines @@
   }
 
   return web::WEB_VIEW_DOCUMENT_TYPE_GENERIC;
 }
 
 - (NSString*)refererFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:@"Referer"];
 }
 
 @end