Fix the conditions when fullscreen detector listeners are registered

third_party/WebKit/Source/core/html/HTMLVideoElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
 
 class CORE_EXPORT HTMLVideoElement final : public HTMLMediaElement,
                                            public CanvasImageSource,
                                            public ImageBitmapSource {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static HTMLVideoElement* create(Document&);
   DECLARE_VIRTUAL_TRACE();
 
+  // Node override.
+  Node::InsertionNotificationRequest insertedInto(ContainerNode*) override;
+  void removedFrom(ContainerNode*) override;
+
   unsigned videoWidth() const;
   unsigned videoHeight() const;
 
   // Fullscreen
   void webkitEnterFullscreen();
   void webkitExitFullscreen();
   bool webkitSupportsFullscreen();
   bool webkitDisplayingFullscreen();
   bool usesOverlayFullscreenVideo() const override;
 
@@ skipping 82 matching lines @@
   Member<HTMLImageLoader> m_imageLoader;
   Member<MediaCustomControlsFullscreenDetector>
       m_customControlsFullscreenDetector;
 
   AtomicString m_defaultPosterURL;
 };
 
 }  // namespace blink
 
 #endif  // HTMLVideoElement_h