Convert FullscreenController to use WebCallbacks

third_party/WebKit/Source/web/FullscreenController.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef FullscreenController_h
 #define FullscreenController_h
 
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/IntSize.h"
+#include "wtf/Vector.h"
 #include <memory>
 
 namespace blink {
 
 class Element;
+class FullscreenCallbacks;
 class LocalFrame;
 class WebViewImpl;
 
 class FullscreenController {
  public:
   static std::unique_ptr<FullscreenController> create(WebViewImpl*);
 
   // Called by Fullscreen (via ChromeClient) to request entering or exiting
   // fullscreen.
-  void enterFullscreen(LocalFrame&);
+  void enterFullscreen(LocalFrame&, std::unique_ptr<FullscreenCallbacks>);
   void exitFullscreen(LocalFrame&);
 
   // Called by content::RenderWidget (via WebWidget) to notify that we've
   // entered or exited fullscreen. This can be because we requested it, or it
   // can be initiated by the browser directly.
   void didEnterFullscreen();
   void didExitFullscreen();
 
   // Called by Fullscreen (via ChromeClient) to notify that the fullscreen
   // element has changed.
@@ skipping 26 matching lines @@
     EnteringFullscreen,
     Fullscreen,
     ExitingFullscreen,
     NeedsScrollAndScaleRestore
   };
   State m_state = State::Initial;
 
   float m_initialPageScaleFactor = 0.0f;
   IntSize m_initialScrollOffset;
   FloatPoint m_initialVisualViewportOffset;
+
+  using CallbacksList = Vector<std::unique_ptr<FullscreenCallbacks>>;
+  CallbacksList m_callbacksList;
 };
 
 }  // namespace blink
 
 #endif