Update Confirmation UI for saved password change

components/autofill/core/common/password_form.cc

 // Copyright 2013 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 <ostream>
 #include <sstream>
 
 #include "base/json/json_writer.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
@@ skipping 76 matching lines @@
 bool PasswordForm::IsPublicSuffixMatch() const {
   CHECK(is_alive);
   return !original_signon_realm.empty();
 }
 
 bool PasswordForm::IsPossibleChangePasswordForm() const {
   return !new_password_element.empty() &&
          layout != PasswordForm::Layout::LAYOUT_LOGIN_AND_SIGNUP;
 }
 
+bool PasswordForm::IsPossibleChangePasswordFormWithoutUsername() const {
+  return IsPossibleChangePasswordForm() && username_element.empty();
+}
+
 bool PasswordForm::operator==(const PasswordForm& form) const {
   return scheme == form.scheme &&
       signon_realm == form.signon_realm &&
       original_signon_realm == form.original_signon_realm &&
       origin == form.origin &&
       action == form.action &&
       submit_element == form.submit_element &&
       username_element == form.username_element &&
       username_marked_by_site == form.username_marked_by_site &&
       username_value == form.username_value &&
@@ skipping 59 matching lines @@
       form_json, base::JSONWriter::OPTIONS_PRETTY_PRINT, &form_as_string);
   base::TrimWhitespaceASCII(form_as_string, base::TRIM_ALL, &form_as_string);
   return os << "PasswordForm(" << form_as_string << ")";
 }
 
 std::ostream& operator<<(std::ostream& os, PasswordForm* form) {
   return os << "&" << *form;
 }
 
 }  // namespace autofill