Do not suppress HTTP Authenticaiton in WebController.

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 3280 matching lines @@
 - (void)handleHTTPAuthForChallenge:(NSURLAuthenticationChallenge*)challenge
                  completionHandler:
                      (void (^)(NSURLSessionAuthChallengeDisposition,
                                NSURLCredential*))completionHandler {
   NSURLProtectionSpace* space = challenge.protectionSpace;
   DCHECK(
       [space.authenticationMethod isEqual:NSURLAuthenticationMethodHTTPBasic] ||
       [space.authenticationMethod isEqual:NSURLAuthenticationMethodNTLM] ||
       [space.authenticationMethod isEqual:NSURLAuthenticationMethodHTTPDigest]);
 
-  if (self.shouldSuppressDialogs) {
-    // TODO(crbug.com/702381): Web Controller should not assume that embedder
-    // handles HTTP Authentication by showing the dialog.
-    _webStateImpl->OnDialogSuppressed();
-    completionHandler(NSURLSessionAuthChallengeRejectProtectionSpace, nil);
-    return;
-  }
-
   _webStateImpl->OnAuthRequired(
       space, challenge.proposedCredential,
       base::BindBlock(^(NSString* user, NSString* password) {
         [CRWWebController processHTTPAuthForUser:user
                                         password:password
                                completionHandler:completionHandler];
       }));
 }
 
 + (void)processHTTPAuthForUser:(NSString*)user
@@ skipping 1775 matching lines @@
 - (void)simulateLoadRequestWithURL:(const GURL&)URL {
   _lastRegisteredRequestURL = URL;
   _loadPhase = web::LOAD_REQUESTED;
 }
 
 - (NSString*)referrerFromNavigationAction:(WKNavigationAction*)action {
   return [action.request valueForHTTPHeaderField:kReferrerHeaderName];
 }
 
 @end