chromium/chrome/browser/picture_in_picture/auto_picture_in_picture_tab_strip_observer_helper.h

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_PICTURE_IN_PICTURE_AUTO_PICTURE_IN_PICTURE_TAB_STRIP_OBSERVER_HELPER_H_
#define CHROME_BROWSER_PICTURE_IN_PICTURE_AUTO_PICTURE_IN_PICTURE_TAB_STRIP_OBSERVER_HELPER_H_

#include <memory>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"

namespace content {
class WebContents;
}  // namespace content

class BrowserTabStripTracker;

// The AutoPictureInPictureTabStripObserverHelper is used by the
// AutoPictureInPictureTabHelper to observe the current tabstrip of its
// WebContents and notify the AutoPictureInPictureTabHelper whenever the
// WebContents's tab changes from being the active tab on its tabstrip to not
// and vice versa.
class AutoPictureInPictureTabStripObserverHelper
    : public TabStripModelObserver { … };

#endif  // CHROME_BROWSER_PICTURE_IN_PICTURE_AUTO_PICTURE_IN_PICTURE_TAB_STRIP_OBSERVER_HELPER_H_