Stop prerendering of a site if it uses the Credential Manager API.

chrome/browser/password_manager/chrome_password_manager_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 34 matching lines @@
       public content::WebContentsObserver,
       public content::WebContentsUserData<ChromePasswordManagerClient>,
       public autofill::mojom::PasswordManagerClient {
  public:
   ~ChromePasswordManagerClient() override;
 
   // PasswordManagerClient implementation.
   bool IsAutomaticPasswordSavingEnabled() const override;
   bool IsSavingAndFillingEnabledForCurrentPage() const override;
   bool IsFillingEnabledForCurrentPage() const override;
+  bool OnCredentialManagerUsed() override;
   bool PromptUserToSaveOrUpdatePassword(
       std::unique_ptr<password_manager::PasswordFormManager> form_to_save,
       password_manager::CredentialSourceType type,
       bool update_password) override;
   bool PromptUserToChooseCredentials(
       std::vector<std::unique_ptr<autofill::PasswordForm>> local_forms,
       const GURL& origin,
       const CredentialsCallback& callback) override;
   void ForceSavePassword() override;
   void GeneratePassword() override;
@@ skipping 119 matching lines @@
   std::unique_ptr<password_manager::LogManager> log_manager_;
 
   // Set during 'NotifyUserCouldBeAutoSignedIn' in order to store the
   // form for potential use during 'NotifySuccessfulLoginWithExistingPassword'.
   std::unique_ptr<autofill::PasswordForm> possible_auto_sign_in_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePasswordManagerClient);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_