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- // Copyright 2019 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_BREADCRUMBS_CORE_BREADCRUMB_MANAGER_OBSERVER_H_
- #define COMPONENTS_BREADCRUMBS_CORE_BREADCRUMB_MANAGER_OBSERVER_H_
- #include <string>
- #include "base/observer_list_types.h"
- namespace breadcrumbs {
- class BreadcrumbManager;
- class BreadcrumbManagerObserver : public base::CheckedObserver {
- public:
- BreadcrumbManagerObserver(const BreadcrumbManagerObserver&) = delete;
- BreadcrumbManagerObserver& operator=(const BreadcrumbManagerObserver&) =
- delete;
- // Called when a new |event| has been added to |manager|. Similar to
- // |BreadcrumbManager::GetEvents|, |event| will have the timestamp at which it
- // was logged prepended to the string which was passed to
- // |BreadcrumbManager::AddEvent|.
- virtual void EventAdded(BreadcrumbManager* manager,
- const std::string& event) {}
- // Called when old events have been removed.
- virtual void OldEventsRemoved(BreadcrumbManager* manager) {}
- protected:
- BreadcrumbManagerObserver() = default;
- };
- } // namespace breadcrumbs
- #endif // COMPONENTS_BREADCRUMBS_CORE_BREADCRUMB_MANAGER_OBSERVER_H_
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