Media Remoting: Add interstitial elements to media element shadow dom.

third_party/WebKit/Source/core/html/shadow/MediaRemotingElements.h

+// Copyright 2017 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 MediaRemotingElements_h
+#define MediaRemotingElements_h
+
+#include "core/html/shadow/MediaControlElementTypes.h"
+#include "core/html/shadow/MediaRemotingInterstitial.h"
+
+namespace blink {
+
+class MediaRemotingDisableButtonElement final : public HTMLInputElement {
+ public:
+  explicit MediaRemotingDisableButtonElement(
+      MediaRemotingInterstitialElements&);
+
+  void OnShown();
+  void OnHidden();
+  HTMLVideoElement& VideoElement() const;
+
+  DECLARE_VIRTUAL_TRACE();
+
+ private:
+  class MouseEventsListener;
+
+  Member<MediaRemotingInterstitialElements> interstitial_elements_;
+  Member<MouseEventsListener> listener_;
+};
+
+}  // namespace blink
+
+#endif  // MediaRemotingElements_h