chromium/content/public/browser/browser_or_resource_context.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_BROWSER_OR_RESOURCE_CONTEXT_H_
#define CONTENT_PUBLIC_BROWSER_BROWSER_OR_RESOURCE_CONTEXT_H_

#include <cstddef>

#include "base/memory/raw_ref.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_thread.h"
#include "third_party/abseil-cpp/absl/types/variant.h"

namespace content {

class BrowserContext;
class ResourceContext;

// A class holding either BrowserContext*, a ResourceContext*, or nothing. This
// class should hold a BrowserContext* when constructed on the UI thread and a
// ResourceContext* when constructed on the IO thread. This object must only be
// accessed on the thread it was constructed and does not allow converting
// between the two pointer types.
class CONTENT_EXPORT BrowserOrResourceContext final { … };

}  // namespace content

#endif  // CONTENT_PUBLIC_BROWSER_BROWSER_OR_RESOURCE_CONTEXT_H_