Do not save passwords if the landing page has HTTP status 5xx or 4xx

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 "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "components/password_manager/content/browser/content_credential_manager_dispatcher.h"
@@ skipping 47 matching lines @@
   PrefService* GetPrefs() override;
   password_manager::PasswordStore* GetPasswordStore() override;
   password_manager::PasswordManagerDriver* GetDriver() override;
   base::FieldTrial::Probability GetProbabilityForExperiment(
       const std::string& experiment_name) override;
   bool IsPasswordSyncEnabled(
       password_manager::CustomPassphraseState state) override;
   void OnLogRouterAvailabilityChanged(bool router_can_be_used) override;
   void LogSavePasswordProgress(const std::string& text) override;
   bool IsLoggingActive() const override;
+  bool WasLastNavigationHTTPError() const override;
 
   // Hides any visible generation UI.
   void HidePasswordGenerationPopup();
 
   static void CreateForWebContentsWithAutofillClient(
       content::WebContents* contents,
       autofill::AutofillClient* autofill_client);
 
   // Convenience method to allow //chrome code easy access to a PasswordManager
   // from a WebContents instance.
@@ skipping 83 matching lines @@
   AutofillForSyncCredentialsState autofill_sync_state_;
 
   // If the sync credential was filtered during autofill. Used for statistics
   // reporting.
   bool sync_credential_was_filtered_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePasswordManagerClient);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_CHROME_PASSWORD_MANAGER_CLIENT_H_