stored_page.h | Explore in Territory

// 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_STORED_PAGE_H_
#define CONTENT_BROWSER_RENDERER_HOST_STORED_PAGE_H_

#include <set>
#include <unordered_map>

#include "base/memory/raw_ptr.h"
#include "base/memory/safe_ref.h"
#include "content/browser/site_instance_group.h"
#include "content/public/browser/site_instance.h"
#include "third_party/blink/public/mojom/page/page.mojom.h"

namespace content {
class RenderFrameHostImpl;
class RenderFrameProxyHost;
class RenderViewHostImpl;

// StoredPage contains a page which is not tied to a FrameTree. It holds the
// main RenderFrameHost together with RenderViewHosts and main document's
// proxies. It's used for storing pages in back/forward cache or when preparing
// prerendered pages for activation. It is possible that this class
// is constructed with a `RenderViewHostImpl` that may disappear when a
// outstanding subframe navigation completes. To make sure the references
// of this class to `RenderViewHostImpl` are not stale this class implements
// `SiteInstanceGroup::Observer` to monitor their destruction.
class StoredPage : public SiteInstanceGroup::Observer { … };

}  // namespace content

#endif  // CONTENT_BROWSER_RENDERER_HOST_STORED_PAGE_H_
chromium/content/browser/renderer_host/stored_page.h
