Replaced webPageOrderedClose with WebStateDelegate API.

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 3142 matching lines @@
     const GURL currentNavigationURL =
         item ? item->GetVirtualURL() : GURL::EmptyGURL();
     // Check If the URL is handled by a native app.
     if ([self urlTriggersNativeAppLaunch:requestURL
                                sourceURL:currentNavigationURL
                  linkActivatedNavigation:isNavigationTypeLinkActivated]) {
       // External app has been launched successfully. Stop the current page
       // load operation (e.g. notifying all observers) and record the URL so
       // that errors reported following the 'NO' reply can be safely ignored.
       if ([self shouldClosePageOnNativeApplicationLoad])
-        [_delegate webPageOrderedClose];
+        _webStateImpl->CloseWebState();
       [self stopLoading];
       [_openedApplicationURL addObject:request.URL];
       return NO;
     }
   }
 
   // The WebDelegate may instruct the CRWWebController to stop loading, and
   // instead instruct the next page to be loaded in an animation.
   GURL mainDocumentURL = net::GURLWithNSURL(request.mainDocumentURL);
   DCHECK(_webView);
@@ skipping 30 matching lines @@
         [self setDocumentURL:lastCommittedURL];
       }
     }
 
     if ([_delegate openExternalURL:requestURL
                        linkClicked:isNavigationTypeLinkActivated]) {
       // Record the URL so that errors reported following the 'NO' reply can be
       // safely ignored.
       [_openedApplicationURL addObject:request.URL];
       if ([self shouldClosePageOnNativeApplicationLoad])
-        [_delegate webPageOrderedClose];
+        _webStateImpl->CloseWebState();
     }
     return NO;
   }
 
   if ([[request HTTPMethod] isEqualToString:@"POST"]) {
     web::NavigationItemImpl* item = self.currentNavItem;
     // TODO(crbug.com/570699): Remove this check once it's no longer possible to
     // have no current entries.
     if (item)
       [self cachePOSTDataForRequest:request inNavigationItem:item];
@@ skipping 1147 matching lines @@
   // different). |configuration| param and config returned by
   // WKWebViewConfigurationProvider are different objects because WKWebView
   // makes a shallow copy of the config inside init, so every WKWebView
   // owns a separate shallow copy of WKWebViewConfiguration.
   [childWebController ensureWebViewCreatedWithConfiguration:configuration];
   return childWebController.webView;
 }
 
 - (void)webViewDidClose:(WKWebView*)webView {
   if (self.sessionController.openedByDOM) {
-    [self.delegate webPageOrderedClose];
+    _webStateImpl->CloseWebState();
   }
 }
 
 - (void)webView:(WKWebView*)webView
     runJavaScriptAlertPanelWithMessage:(NSString*)message
                       initiatedByFrame:(WKFrameInfo*)frame
                      completionHandler:(void (^)())completionHandler {
   [self runJavaScriptDialogOfType:web::JAVASCRIPT_DIALOG_TYPE_ALERT
                  initiatedByFrame:frame
                           message:message
@@ skipping 826 matching lines @@
 - (void)simulateLoadRequestWithURL:(const GURL&)URL {
   _lastRegisteredRequestURL = URL;
   _loadPhase = web::LOAD_REQUESTED;
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end