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

Source/core/paint/DeprecatedPaintLayerPainter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DeprecatedPaintLayerPainter_h
 #define DeprecatedPaintLayerPainter_h
 
 #include "core/CoreExport.h"
 #include "core/paint/DeprecatedPaintLayerFragment.h"
 #include "core/paint/DeprecatedPaintLayerPaintingInfo.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class ClipRect;
 class DeprecatedPaintLayer;
 class GraphicsContext;
 class LayoutPoint;
 
 class CORE_EXPORT DeprecatedPaintLayerPainter {
+    STACK_ALLOCATED();
 public:
     enum FragmentPolicy { AllowMultipleFragments, ForceSingleFragment };
 
     DeprecatedPaintLayerPainter(DeprecatedPaintLayer& paintLayer) : m_paintLayer(paintLayer) { }
 
     // The paint() method paints the layers that intersect the damage rect from back to front.
     //  paint() assumes that the caller will clip to the bounds of damageRect if necessary.
     void paint(GraphicsContext*, const LayoutRect& damageRect, const GlobalPaintFlags = GlobalPaintNormalPhase, LayoutObject* paintingRoot = 0, PaintLayerFlags = 0);
     // paintLayer() assumes that the caller will clip to the bounds of the painting dirty if necessary.
     void paintLayer(GraphicsContext*, const DeprecatedPaintLayerPaintingInfo&, PaintLayerFlags);
@@ skipping 28 matching lines @@
     // Returns whether this layer should be painted during sofware painting (i.e., not via calls from CompositedDeprecatedPaintLayerMapping to draw into composited
     // layers).
     bool shouldPaintLayerInSoftwareMode(const GlobalPaintFlags, PaintLayerFlags paintFlags);
 
     DeprecatedPaintLayer& m_paintLayer;
 };
 
 } // namespace blink
 
 #endif // DeprecatedPaintLayerPainter_h