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

components/password_manager/core/browser/suppressed_form_fetcher.cc

+// 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.
+
+#include "components/password_manager/core/browser/suppressed_form_fetcher.h"
+
+#include "base/logging.h"
+#include "base/stl_util.h"
+#include "components/password_manager/core/browser/password_manager_client.h"
+#include "components/password_manager/core/browser/password_store.h"
+#include "url/gurl.h"
+
+namespace password_manager {
+
+SuppressedFormFetcher::SuppressedFormFetcher(
+    const std::string& observed_signon_realm,
+    const PasswordManagerClient* client,
+    Consumer* consumer)
+    : client_(client),
+      consumer_(consumer),
+      observed_signon_realm_(observed_signon_realm) {
+  DCHECK(client_);
+  DCHECK(consumer_);
+  DCHECK(GURL(observed_signon_realm_).SchemeIsHTTPOrHTTPS());
+  client_->GetPasswordStore()->GetLoginsForSameOrganizationName(
+      observed_signon_realm_, this);
+}
+
+SuppressedFormFetcher::~SuppressedFormFetcher() = default;
+
+void SuppressedFormFetcher::OnGetPasswordStoreResults(
+    std::vector<std::unique_ptr<autofill::PasswordForm>> results) {
+  base::EraseIf(results,
+                [this](const std::unique_ptr<autofill::PasswordForm>& form) {
+                  return form->signon_realm == observed_signon_realm_;
+                });
+
+  consumer_->ProcessSuppressedForms(std::move(results));
+}
+
+}  // namespace password_manager