Convert FullscreenController to use WebCallbacks

third_party/WebKit/Source/core/dom/Fullscreen.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 74 matching lines @@
   // TODO(foolip): The fullscreen element stack is modified synchronously in
   // requestFullscreen(), which is not per spec and means that
   // |fullscreenElement()| is not always the same as
   // |currentFullScreenElement()|, see https://crbug.com/402421.
   Element* fullscreenElement() const {
     return !m_fullscreenElementStack.isEmpty()
                ? m_fullscreenElementStack.back().first.get()
                : nullptr;
   }
 
-  void didEnterFullscreenForElement(Element*);
   void didExitFullscreen();
 
   void setFullScreenLayoutObject(LayoutFullScreen*);
   LayoutFullScreen* fullScreenLayoutObject() const {
     return m_fullScreenLayoutObject;
   }
   void fullScreenLayoutObjectDestroyed();
 
   void elementRemoved(Element&);
 
@@ skipping 10 matching lines @@
   Element* currentFullScreenElement() const {
     return m_currentFullScreenElement.get();
   }
 
   // ContextLifecycleObserver:
   void contextDestroyed() override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
+  friend class RequestFullscreenCallbacks;
+
   static Fullscreen* fromIfExistsSlow(Document&);
 
   explicit Fullscreen(Document&);
 
   Document* document();
 
+  void didEnterFullscreen(Element&);
+
   void clearFullscreenElementStack();
   void popFullscreenElementStack();
   void pushFullscreenElementStack(Element&, RequestType);
 
   void enqueueChangeEvent(Document&, RequestType);
   void enqueueErrorEvent(Element&, RequestType);
   void eventQueueTimerFired(TimerBase*);
 
   HeapVector<std::pair<Member<Element>, RequestType>> m_fullscreenElementStack;
   Member<Element> m_currentFullScreenElement;
@@ skipping 23 matching lines @@
 
 inline bool Fullscreen::isCurrentFullScreenElement(const Element& element) {
   if (Fullscreen* found = fromIfExists(element.document()))
     return found->currentFullScreenElement() == &element;
   return false;
 }
 
 }  // namespace blink
 
 #endif  // Fullscreen_h