Deprecating AutoplayExperimentHelper

third_party/WebKit/Source/core/layout/api/LayoutMediaItem.h

-// Copyright 2016 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 LayoutMediaItem_h
-#define LayoutMediaItem_h
-
-#include "core/layout/LayoutMedia.h"
-#include "core/layout/api/LayoutImageItem.h"
-
-namespace blink {
-
-class LayoutMediaItem : public LayoutImageItem {
- public:
-  explicit LayoutMediaItem(LayoutMedia* layoutMedia)
-      : LayoutImageItem(layoutMedia) {}
-
-  explicit LayoutMediaItem(const LayoutItem& item) : LayoutImageItem(item) {
-    SECURITY_DCHECK(!item || item.isMedia());
-  }
-
-  explicit LayoutMediaItem(std::nullptr_t) : LayoutImageItem(nullptr) {}
-
-  LayoutMediaItem() {}
-
-  void setRequestPositionUpdates(bool want) {
-    return toMedia()->setRequestPositionUpdates(want);
-  }
-
- private:
-  LayoutMedia* toMedia() { return toLayoutMedia(layoutObject()); }
-
-  const LayoutMedia* toMedia() const { return toLayoutMedia(layoutObject()); }
-};
-
-}  // namespace blink
-
-#endif  // LayoutMediaItem_h