Remove CURSOR_VISIBILITY, it's always off

Source/core/page/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 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 282 matching lines @@
     bool isKeyEventAllowedInFullScreen(const PlatformKeyboardEvent&) const;
 
     bool handleGestureTapDown();
     bool passGestureEventToWidget(const PlatformGestureEvent&, Widget*);
     bool passGestureEventToWidgetIfPossible(const PlatformGestureEvent&, RenderObject*);
     bool sendScrollEventToView(const PlatformGestureEvent&, const FloatSize&);
     Frame* getSubFrameForGestureEvent(const IntPoint& touchAdjustedPoint, const PlatformGestureEvent&);
 
     void setLastKnownMousePosition(const PlatformMouseEvent&);
 
-#if ENABLE(CURSOR_VISIBILITY)
-    void startAutoHideCursorTimer();
-    void cancelAutoHideCursorTimer();
-    void autoHideCursorTimerFired(Timer<EventHandler>*);
-#endif
-
     Frame* m_frame;
 
     bool m_mousePressed;
     bool m_capturesDragging;
     RefPtr<Node> m_mousePressNode;
 
     bool m_mouseDownMayStartSelect;
     bool m_mouseDownMayStartDrag;
     bool m_dragMayStartSelectionInstead;
     bool m_mouseDownWasSingleClickInSelection;
@@ skipping 60 matching lines @@
 
     RefPtr<Node> m_scrollGestureHandlingNode;
     bool m_lastHitTestResultOverWidget;
     RefPtr<Node> m_previousGestureScrolledNode;
     RefPtr<Scrollbar> m_scrollbarHandlingScrollGesture;
 
     double m_maxMouseMovedDuration;
     PlatformEvent::Type m_baseEventType;
     bool m_didStartDrag;
     bool m_didLongPressInvokeContextMenu;
-
-#if ENABLE(CURSOR_VISIBILITY)
-    Timer<EventHandler> m_autoHideCursorTimer;
-#endif
 };
 
 } // namespace WebCore
 
 #endif // EventHandler_h