[Password Manager] Store forms with field name and id attributes missing.

components/password_manager/core/browser/password_manager.cc

 // Copyright (c) 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.
 
 #include "components/password_manager/core/browser/password_manager.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/prefs/pref_service.h"
@@ skipping 287 matching lines @@
   if (matched_manager_it != pending_login_managers_.end()) {
     // Transfer ownership of the manager from |pending_login_managers_| to
     // |manager|.
     manager.reset(*matched_manager_it);
     pending_login_managers_.weak_erase(matched_manager_it);
   } else {
     RecordFailure(NO_MATCHING_FORM, form.origin, logger.get());
     return;
   }
 
-  // Bail if we're missing any of the necessary form components.
-  if (!manager->HasValidPasswordForm()) {
-    RecordFailure(INVALID_FORM, form.origin, logger.get());
-    return;
-  }
-
   PasswordForm provisionally_saved_form(form);
   provisionally_saved_form.ssl_valid =
       form.origin.SchemeIsCryptographic() &&
       !client_->DidLastPageLoadEncounterSSLErrors();
   provisionally_saved_form.preferred = true;
   if (logger) {
     logger->LogPasswordForm(Logger::STRING_PROVISIONALLY_SAVED_FORM,
                             provisionally_saved_form);
   }
   PasswordFormManager::OtherPossibleUsernamesAction action =
@@ skipping 478 matching lines @@
       matched_manager_it = iter;
       current_match_result = result;
     }
   }
   if (matched_manager_it != pending_login_managers_.end())
     return *matched_manager_it;
   return nullptr;
 }
 
 }  // namespace password_manager