// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/ukm/observers/history_delete_observer.h"

namespace ukm {

HistoryDeleteObserver::HistoryDeleteObserver() = default;

HistoryDeleteObserver::~HistoryDeleteObserver() = default;

void HistoryDeleteObserver::ObserveServiceForDeletions(
    history::HistoryService* history_service) {
  if (history_service)
    history_observations_.AddObservation(history_service);
}

void HistoryDeleteObserver::OnHistoryDeletions(
    history::HistoryService* history_service,
    const history::DeletionInfo& deletion_info) {
  if (!deletion_info.is_from_expiration())
    OnHistoryDeleted();
}

void HistoryDeleteObserver::HistoryServiceBeingDeleted(
    history::HistoryService* history_service) {
  history_observations_.RemoveObservation(history_service);
}

}  // namespace ukm