chromium/components/safe_browsing/content/browser/safe_browsing_navigation_throttle.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 COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_NAVIGATION_THROTTLE_H_
#define COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_NAVIGATION_THROTTLE_H_

#include "base/memory/raw_ptr.h"
#include "content/public/browser/navigation_throttle.h"

namespace content {
class NavigationHandle;
}  // namespace content

namespace safe_browsing {

class SafeBrowsingUIManager;

// This throttle monitors failed requests in an outer-most main frame (e.g.
// doesn't apply for fenced-frames), and if a request failed due to
// it being blocked by Safe Browsing, it creates and displays an interstitial.
// For other kinds of loads, the interstitial is navigated at the same time the
// load is canceled in BaseUIManager::DisplayBlockingPage
//
// This NavigationThrottle doesn't actually perform a SafeBrowsing check nor
// block the navigation.  That happens in SafeBrowsing's
// BrowserURLLoaderThrottle and RendererURLLoaderThrottles and related code.
// Those cause the navigation to fail which invokes this throttle to show the
// interstitial.
class SafeBrowsingNavigationThrottle : public content::NavigationThrottle { … };

}  // namespace safe_browsing

#endif  // COMPONENTS_SAFE_BROWSING_CONTENT_BROWSER_SAFE_BROWSING_NAVIGATION_THROTTLE_H_