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

Source/core/layout/svg/SVGMarkerData.h

 /*
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef SVGMarkerData_h
 #define SVGMarkerData_h
 
 #include "platform/FloatConversion.h"
 #include "platform/graphics/Path.h"
+#include "wtf/Allocator.h"
 #include "wtf/MathExtras.h"
 
 namespace blink {
 
 enum SVGMarkerType {
     StartMarker,
     MidMarker,
     EndMarker
 };
 
 struct MarkerPosition {
+    ALLOW_ONLY_INLINE_ALLOCATION();
     MarkerPosition(SVGMarkerType useType, const FloatPoint& useOrigin, float useAngle)
         : type(useType)
         , origin(useOrigin)
         , angle(useAngle)
     {
     }
 
     SVGMarkerType type;
     FloatPoint origin;
     float angle;
 };
 
 class LayoutSVGResourceMarker;
 
 class SVGMarkerData {
+    STACK_ALLOCATED();
 public:
     SVGMarkerData(Vector<MarkerPosition>& positions, bool autoStartReverse)
         : m_positions(positions)
         , m_elementIndex(0)
         , m_autoStartReverse(autoStartReverse)
     {
     }
 
     static void updateFromPathElement(void* info, const PathElement* element)
     {
@@ skipping 105 matching lines @@
     FloatPoint m_origin;
     FloatPoint m_subpathStart;
     FloatPoint m_inslopePoints[2];
     FloatPoint m_outslopePoints[2];
     bool m_autoStartReverse;
 };
 
 }
 
 #endif // SVGMarkerData_h