[Password Generation] Run the form classifier only if AutofillMetadata is enabled

components/password_manager/content/browser/content_password_manager_driver.cc

 // Copyright 2014 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/content/browser/content_password_manager_driver.h"
 
 #include "components/autofill/content/common/autofill_messages.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/password_manager/content/browser/bad_message.h"
@@ skipping 118 matching lines @@
   host->Send(
       new AutofillMsg_UserTriggeredGeneratePassword(host->GetRoutingID()));
 }
 
 void ContentPasswordManagerDriver::SendLoggingAvailability() {
   render_frame_host_->Send(new AutofillMsg_SetLoggingState(
       render_frame_host_->GetRoutingID(),
       client_->GetLogManager()->IsLoggingActive()));
 }
 
+void ContentPasswordManagerDriver::AllowToRunFormClassifier() {
+  render_frame_host_->Send(new AutofillMsg_AllowToRunFormClassifier(
+      render_frame_host_->GetRoutingID()));
+}
+
 PasswordGenerationManager*
 ContentPasswordManagerDriver::GetPasswordGenerationManager() {
   return &password_generation_manager_;
 }
 
 PasswordManager* ContentPasswordManagerDriver::GetPasswordManager() {
   return client_->GetPasswordManager();
 }
 
 PasswordAutofillManager*
@@ skipping 38 matching lines @@
     if (!CheckChildProcessSecurityPolicy(
             form.origin, BadMessageReason::CPMD_BAD_ORIGIN_FORMS_PARSED))
       return;
 
   OnPasswordFormsParsedNoRenderCheck(forms);
 }
 
 void ContentPasswordManagerDriver::OnPasswordFormsParsedNoRenderCheck(
     const std::vector<autofill::PasswordForm>& forms) {
   GetPasswordManager()->OnPasswordFormsParsed(this, forms);
+  GetPasswordGenerationManager()->CheckIfFormClassifierShouldRun();
 }
 
 void ContentPasswordManagerDriver::OnPasswordFormsRendered(
     const std::vector<autofill::PasswordForm>& visible_forms,
     bool did_stop_loading) {
   for (const auto& form : visible_forms)
     if (!CheckChildProcessSecurityPolicy(
             form.origin, BadMessageReason::CPMD_BAD_ORIGIN_FORMS_RENDERED))
       return;
   GetPasswordManager()->OnPasswordFormsRendered(this, visible_forms,
@@ skipping 76 matching lines @@
   if (!policy->CanAccessDataForOrigin(render_frame_host_->GetProcess()->GetID(),
                                       url)) {
     bad_message::ReceivedBadMessage(render_frame_host_->GetProcess(), reason);
     return false;
   }
 
   return true;
 }
 
 }  // namespace password_manager