chromium/content/browser/preloading/prerender/prerender_host.h

// Copyright 2020 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_PRELOADING_PRERENDER_PRERENDER_HOST_H_
#define CONTENT_BROWSER_PRELOADING_PRERENDER_PRERENDER_HOST_H_

#include <memory>
#include <optional>
#include <string>

#include "base/memory/raw_ref.h"
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "base/types/pass_key.h"
#include "content/browser/preloading/prerender/prerender_attributes.h"
#include "content/browser/preloading/prerender/prerender_final_status.h"
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/renderer_host/navigation_controller_delegate.h"
#include "content/common/content_export.h"
#include "content/public/browser/render_frame_host.h"
#include "net/http/http_no_vary_search_data.h"
#include "third_party/blink/public/mojom/navigation/navigation_params.mojom-forward.h"
#include "url/gurl.h"

namespace base {
class TimeDelta;
}  // namespace base

namespace blink {
class EnabledClientHints;
}  // namespace blink

namespace network::mojom {
enum class WebClientHintsType;
}  // namespace network::mojom

namespace content {

class DevToolsPrerenderAttempt;
class FrameTreeNode;
class NavigationHandle;
class PrerenderCancellationReason;
class PrerenderHostRegistry;
class RenderFrameHostImpl;
class WebContentsImpl;

// Prerender2:
// PrerenderHost creates a new FrameTree in WebContents associated with the page
// that triggered prerendering and starts prerendering. Then NavigationRequest
// is expected to find this host from PrerenderHostRegistry and activate the
// prerendered page upon navigation. This is created per request from a renderer
// process via SpeculationHostImpl or will directly be created for
// browser-initiated prerendering (this code path is not implemented yet). This
// is owned by PrerenderHostRegistry.
class CONTENT_EXPORT PrerenderHost : public FrameTree::Delegate,
                                     public NavigationControllerDelegate { … };

}  // namespace content

#endif  // CONTENT_BROWSER_PRELOADING_PRERENDER_PRERENDER_HOST_H_