Make classes and structures in core/page fast-allocated.

Source/core/page/AutoscrollController.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 35 matching lines @@
     AutoscrollForDragAndDrop,
     AutoscrollForSelection,
 #if OS(WIN)
     AutoscrollForPanCanStop,
     AutoscrollForPan,
 #endif
 };
 
 // AutscrollController handels autoscroll and pan scroll for EventHandler.
 class CORE_EXPORT AutoscrollController final : public NoBaseWillBeGarbageCollected<AutoscrollController> {
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(AutoscrollController);
 public:
     static PassOwnPtrWillBeRawPtr<AutoscrollController> create(Page&);
     DECLARE_TRACE();
 
     static const int noPanScrollRadius = 15;
 
     void animate(double monotonicFrameBeginTime);
     bool autoscrollInProgress() const;
     bool autoscrollInProgress(const LayoutBox*) const;
     bool panScrollInProgress() const;
@@ skipping 22 matching lines @@
     IntPoint m_dragAndDropAutoscrollReferencePosition;
     double m_dragAndDropAutoscrollStartTime;
 #if OS(WIN)
     IntPoint m_panScrollStartPos;
 #endif
 };
 
 } // namespace blink
 
 #endif // AutoscrollController_h