chromium/content/browser/renderer_host/navigation_entry_restore_context_impl.h

// Copyright 2021 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_BROWSER_RENDERER_HOST_NAVIGATION_ENTRY_RESTORE_CONTEXT_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_NAVIGATION_ENTRY_RESTORE_CONTEXT_IMPL_H_

#include <map>
#include <string>

#include "content/common/content_export.h"
#include "content/public/browser/navigation_entry_restore_context.h"
#include "url/gurl.h"

namespace content {

class FrameNavigationEntry;

// NavigationEntryRestoreContextImpl is passed to
// NavigationEntry::SetPageState() when restoring a vector of NavigationEntries.
// It tracks the item sequence number (ISNs) associated with each
// FrameNavigationEntry (FNE), and maintains a mapping of ISNs to FNEs to
// ensure FNEs are de-duplicated if they appear in multiple NavigationEntries.
class CONTENT_EXPORT NavigationEntryRestoreContextImpl
    : public NavigationEntryRestoreContext { … };

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_NAVIGATION_ENTRY_RESTORE_CONTEXT_IMPL_H_