File: incognito_observer_desktop.cc

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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/functional/callback.h"
#include "chrome/browser/metrics/incognito_observer.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_list_observer.h"

namespace {

class IncognitoObserverDesktop : public IncognitoObserver,
                                 public BrowserListObserver {
 public:
  explicit IncognitoObserverDesktop(
      const base::RepeatingClosure& update_closure)
      : update_closure_(update_closure) {
    BrowserList::AddObserver(this);
  }

  IncognitoObserverDesktop(const IncognitoObserverDesktop&) = delete;
  IncognitoObserverDesktop& operator=(const IncognitoObserverDesktop&) = delete;

  ~IncognitoObserverDesktop() override { BrowserList::RemoveObserver(this); }

 private:
  // BrowserListObserver:
  void OnBrowserAdded(Browser* browser) override { update_closure_.Run(); }
  void OnBrowserRemoved(Browser* browser) override { update_closure_.Run(); }

  const base::RepeatingClosure update_closure_;
};

}  // namespace

// static
std::unique_ptr<IncognitoObserver> IncognitoObserver::Create(
    const base::RepeatingClosure& update_closure) {
  return std::make_unique<IncognitoObserverDesktop>(update_closure);
}