Measure how often PSL and same-organization name credentials are suppressed.

components/password_manager/core/browser/suppressed_https_form_fetcher.h

-// 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_SUPPRESSED_HTTPS_FORM_FETCHER_H_
-#define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_SUPPRESSED_HTTPS_FORM_FETCHER_H_
-
-#include <memory>
-#include <vector>
-
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "components/autofill/core/common/password_form.h"
-#include "components/password_manager/core/browser/password_store_consumer.h"
-#include "url/gurl.h"
-
-namespace password_manager {
-
-class PasswordManagerClient;
-
-// Fetches credentials saved for the HTTPS counterpart of the given HTTP realm.
-//
-// Filling these HTTPS credentials into forms served over HTTP is obviously
-// suppressed, the purpose of doing such a query is to collect metrics on how
-// often this happens and inconveniences the user.
-//
-// This logic is implemented by this class, a separate PasswordStore consumer,
-// to make it very sure that these credentials will not get mistakenly filled.
-class SuppressedHTTPSFormFetcher : public PasswordStoreConsumer {
- public:
-  // Interface to be implemented by the consumer of this class.
-  class Consumer {
-   public:
-    virtual void ProcessSuppressedHTTPSForms(
-        std::vector<std::unique_ptr<autofill::PasswordForm>> forms) = 0;
-  };
-
-  SuppressedHTTPSFormFetcher(const std::string& observed_signon_realm,
-                             const PasswordManagerClient* client,
-                             Consumer* consumer);
-  ~SuppressedHTTPSFormFetcher() override;
-
- protected:
-  // PasswordStoreConsumer:
-  void OnGetPasswordStoreResults(
-      std::vector<std::unique_ptr<autofill::PasswordForm>> results) override;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(SuppressedHTTPSFormFetcherTest, EmptyStore);
-  FRIEND_TEST_ALL_PREFIXES(SuppressedHTTPSFormFetcherTest, FullStore);
-
-  // The client and the consumer should outlive |this|.
-  const PasswordManagerClient* client_;
-  Consumer* consumer_;
-
-  const GURL observed_signon_realm_as_url_;
-
-  DISALLOW_COPY_AND_ASSIGN(SuppressedHTTPSFormFetcher);
-};
-
-}  // namespace password_manager
-
-#endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_SUPPRESSED_HTTPS_FORM_FETCHER_H_