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

Source/core/layout/ClipRect.h

 /*
  * Copyright (C) 2003, 2009, 2012 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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 #ifndef ClipRect_h
 #define ClipRect_h
 
 #include "platform/geometry/LayoutRect.h"
+#include "wtf/FastAllocBase.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class DeprecatedPaintLayer;
 class HitTestLocation;
 
 class ClipRect {
+    WTF_MAKE_FAST_ALLOCATED(ClipRect);
 public:
     static PassOwnPtr<ClipRect> create(const ClipRect& other)
     {
         return adoptPtr(new ClipRect(other));
     }
 
     ClipRect()
         : m_hasRadius(false)
     { }
 
@@ skipping 44 matching lines @@
 inline ClipRect intersection(const ClipRect& a, const ClipRect& b)
 {
     ClipRect c = a;
     c.intersect(b);
     return c;
 }
 
 } // namespace blink
 
 #endif // ClipRect_h