CREDENTIAL: Convert federations from URLs to origins throughout.

ios/web/web_state/credential.cc

 // Copyright 2015 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.
 
 #include "ios/web/public/web_state/credential.h"
 
 namespace web {
 
 Credential::Credential() : type(CREDENTIAL_TYPE_EMPTY) {
 }
 
 Credential::~Credential() = default;
 
 bool CredentialsEqual(const web::Credential& credential1,
                       const web::Credential& credential2) {
   return credential1.type == credential2.type &&
          credential1.id == credential2.id &&
          credential1.name == credential2.name &&
          credential1.avatar_url == credential2.avatar_url &&
          credential1.password == credential2.password &&
-         credential1.federation_url == credential2.federation_url;
+         credential1.federation_origin.Serialize() ==
+             credential2.federation_origin.Serialize();
 }
 
 }  // namespace web