chromium/extensions/browser/lazy_background_task_queue.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_BROWSER_LAZY_BACKGROUND_TASK_QUEUE_H_
#define EXTENSIONS_BROWSER_LAZY_BACKGROUND_TASK_QUEUE_H_

#include <stddef.h>

#include <algorithm>
#include <map>
#include <string>

#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "components/keyed_service/core/keyed_service.h"
#include "extensions/browser/extension_host_registry.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_registry_observer.h"
#include "extensions/browser/lazy_context_id.h"
#include "extensions/browser/lazy_context_task_queue.h"
#include "extensions/common/extension_id.h"

namespace content {
class BrowserContext;
}

namespace extensions {
class Extension;
class ExtensionHost;

// This class maintains a queue of tasks that should execute when an
// extension's lazy background page is loaded. It is also in charge of loading
// the page when the first task is queued.
//
// It is the consumer's responsibility to use this class when appropriate, i.e.
// only with extensions that have not-yet-loaded lazy background pages.
class LazyBackgroundTaskQueue : public KeyedService,
                                public LazyContextTaskQueue,
                                public ExtensionRegistryObserver,
                                public ExtensionHostRegistry::Observer { … };

}  // namespace extensions

#endif  // EXTENSIONS_BROWSER_LAZY_BACKGROUND_TASK_QUEUE_H_