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

Source/core/paint/PaintInfo.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. 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
@@ skipping 17 matching lines @@
 
 // TODO(jchaffraix): Once we unify PaintBehavior and PaintLayerFlags, we should move
 // PaintLayerFlags to PaintPhase and rename it. Thus removing the need for this #include.
 #include "core/paint/DeprecatedPaintLayerPaintingInfo.h"
 #include "core/paint/PaintPhase.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/transforms/AffineTransform.h"
+#include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/ListHashSet.h"
 
 #include <limits>
 
 namespace blink {
 
 class LayoutInline;
 class LayoutBoxModelObject;
 class LayoutObject;
 
 struct PaintInfo {
+    ALLOW_ONLY_INLINE_ALLOCATION();
     PaintInfo(GraphicsContext* newContext, const IntRect& newRect, PaintPhase newPhase, GlobalPaintFlags globalPaintFlags, PaintLayerFlags paintFlags,
         LayoutObject* newPaintingRoot = 0, ListHashSet<LayoutInline*>* newOutlineObjects = 0,
         const LayoutBoxModelObject* newPaintContainer = 0)
         : context(newContext)
         , rect(newRect)
         , phase(newPhase)
         , paintingRoot(newPaintingRoot)
         , m_paintContainer(newPaintContainer)
         , m_outlineObjects(newOutlineObjects)
         , m_paintFlags(paintFlags)
@@ skipping 57 matching lines @@
     const LayoutBoxModelObject* m_paintContainer; // the box model object that originates the current painting
     ListHashSet<LayoutInline*>* m_outlineObjects; // used to list outlines that should be painted by a block with inline children
 
     const PaintLayerFlags m_paintFlags;
     const GlobalPaintFlags m_globalPaintFlags;
 };
 
 } // namespace blink
 
 #endif // PaintInfo_h