chromium/content/public/test/web_contents_observer_test_utils.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_PUBLIC_TEST_WEB_CONTENTS_OBSERVER_TEST_UTILS_H_
#define CONTENT_PUBLIC_TEST_WEB_CONTENTS_OBSERVER_TEST_UTILS_H_

#include "base/functional/callback.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"

namespace content {

// This file contains helpers wrapping WebContentsObserver methods to allow
// tests to pass base::Callbacks to listen to the events (which can be defined
// inline and capture the test context using BindLambdaForTesting) rather than
// having to subclass WebContentsObserver.

// Forwards DidStartNavigation calls to the provided callback.
class NavigationStartObserver : public WebContentsObserver { … };

// Forwards DidFinishNavigation calls to the provided callback.
class NavigationFinishObserver : public WebContentsObserver { … };

}  // namespace content

#endif  // CONTENT_PUBLIC_TEST_WEB_CONTENTS_OBSERVER_TEST_UTILS_H_