Obsolete HTTP Cleaner

components/password_manager/core/browser/obsolete_http_cleaner.h

Index: components/password_manager/core/browser/obsolete_http_cleaner.h
diff --git a/components/password_manager/core/browser/obsolete_http_cleaner.h b/components/password_manager/core/browser/obsolete_http_cleaner.h
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+// Copyright 2017 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 COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_OBSOLETE_HTTP_CLEANER_H_
+#define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_OBSOLETE_HTTP_CLEANER_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/macros.h"
+#include "components/password_manager/core/browser/password_store_consumer.h"
+
+namespace autofill {
+struct PasswordForm;
+}
+
+namespace password_manager {
+
+class PasswordManagerClient;
+
+// This class removes obsolete HTTP data from a password store. HTTP data is
+// obsolete, if the corresponding host migrated to HTTPS and has HSTS enabled.
+class ObsoleteHttpCleaner : public PasswordStoreConsumer {
+ public:
+  explicit ObsoleteHttpCleaner(const PasswordManagerClient* client);
+  ~ObsoleteHttpCleaner() override;
+
+  // PasswordStoreConsumer:
+  // This will be called for both autofillable logins as well as blacklisted
+  // logins. Blacklisted logins are removed iff the scheme is HTTP and HSTS is
+  // enabled for the host.
+  // Autofillable logins are removed iff the scheme is HTTP and there exists
+  // another HTTPS login with active HSTS that has the same host as well as the
+  // same username and password.
+  void OnGetPasswordStoreResults(
+      std::vector<std::unique_ptr<autofill::PasswordForm>> results) override;
+
+  // This will remove all stats for HTTP sites for which HSTS is active.
+  void OnGetSiteStatistics(std::vector<InteractionsStats> stats) override;
+
+ private:
+  const PasswordManagerClient* const client_;
+
+  DISALLOW_COPY_AND_ASSIGN(ObsoleteHttpCleaner);
+};
+
+}  // namespace password_manager
+
+#endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_OBSOLETE_HTTP_CLEANER_H_