chrome/browser/tab_contents/navigation_metrics_recorder.h

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_
#define CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_

#include "base/macros.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"

class NavigationMetricsRecorder
    : public content::WebContentsObserver,
      public content::WebContentsUserData<NavigationMetricsRecorder> {
 public:
  ~NavigationMetricsRecorder() override;

  // Turns on a synthetic field trial that is set on any navigation to a site
  // that requires a dedicated process.  Normally this is only used on Android,
  // but tests on other platforms can also turn this behavior on.
  void EnableSiteIsolationSyntheticTrialForTesting();

 private:
  explicit NavigationMetricsRecorder(content::WebContents* web_contents);
  friend class content::WebContentsUserData<NavigationMetricsRecorder>;

  // content::WebContentsObserver overrides:
  void DidFinishNavigation(
      content::NavigationHandle* navigation_handle) override;

  bool is_synthetic_isolation_trial_enabled_;

  WEB_CONTENTS_USER_DATA_KEY_DECL();

  DISALLOW_COPY_AND_ASSIGN(NavigationMetricsRecorder);
};

#endif  // CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_