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

Source/core/paint/DeprecatedPaintLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 38 matching lines @@
 #include "core/layout/LayoutBox.h"
 #include "core/paint/DeprecatedPaintLayerClipper.h"
 #include "core/paint/DeprecatedPaintLayerFilterInfo.h"
 #include "core/paint/DeprecatedPaintLayerFragment.h"
 #include "core/paint/DeprecatedPaintLayerReflectionInfo.h"
 #include "core/paint/DeprecatedPaintLayerScrollableArea.h"
 #include "core/paint/DeprecatedPaintLayerStackingNode.h"
 #include "core/paint/DeprecatedPaintLayerStackingNodeIterator.h"
 #include "platform/graphics/CompositingReasons.h"
 #include "public/platform/WebBlendMode.h"
+#include "wtf/Allocator.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
 class FilterEffectBuilder;
 class FilterOperations;
 class HitTestRequest;
 class HitTestResult;
 class HitTestingTransformState;
 class DeprecatedPaintLayerCompositor;
 class CompositedDeprecatedPaintLayerMapping;
 class ComputedStyle;
 class TransformationMatrix;
 
 enum IncludeSelfOrNot { IncludeSelf, ExcludeSelf };
 
 enum CompositingQueryMode {
     CompositingQueriesAreAllowed,
     CompositingQueriesAreOnlyAllowedInCertainDocumentLifecyclePhases
 };
 
 // FIXME: remove this once the compositing query ASSERTS are no longer hit.
 class CORE_EXPORT DisableCompositingQueryAsserts {
+    STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(DisableCompositingQueryAsserts);
 public:
     DisableCompositingQueryAsserts();
 private:
     TemporaryChange<CompositingQueryMode> m_disabler;
 };
 
 // DeprecatedPaintLayer is an old object that handles lots of unrelated operations.
 // We want it to die at some point and be replaced by more focused objects. Removing
 // a lot of unneeded complexity.
@@ skipping 306 matching lines @@
     }
 
     bool scrollsOverflow() const;
 
     CompositingReasons potentialCompositingReasonsFromStyle() const { return m_potentialCompositingReasonsFromStyle; }
     void setPotentialCompositingReasonsFromStyle(CompositingReasons reasons) { ASSERT(reasons == (reasons & CompositingReasonComboAllStyleDeterminedReasons)); m_potentialCompositingReasonsFromStyle = reasons; }
 
     bool hasStyleDeterminedDirectCompositingReasons() const { return m_potentialCompositingReasonsFromStyle & CompositingReasonComboAllDirectStyleDeterminedReasons; }
 
     class AncestorDependentCompositingInputs {
+        DISALLOW_ALLOCATION();
     public:
         AncestorDependentCompositingInputs()
             : opacityAncestor(0)
             , transformAncestor(0)
             , filterAncestor(0)
             , clippingContainer(0)
             , ancestorScrollingLayer(0)
             , nearestFixedPositionLayer(0)
             , scrollParent(0)
             , clipParent(0)
@@ skipping 20 matching lines @@
         // blink so that it may be used as a promotion trigger. Layers with clip
         // parents escape the clip of a stacking tree ancestor. The compositor
         // needs to know about clip parents in order to circumvent its normal
         // clipping logic.
         const DeprecatedPaintLayer* clipParent;
 
         unsigned hasAncestorWithClipPath : 1;
     };
 
     class DescendantDependentCompositingInputs {
+        DISALLOW_ALLOCATION();
     public:
         DescendantDependentCompositingInputs()
             : hasDescendantWithClipPath(false)
             , hasNonIsolatedDescendantWithBlendMode(false)
         { }
 
         unsigned hasDescendantWithClipPath : 1;
         unsigned hasNonIsolatedDescendantWithBlendMode : 1;
     };
 
@@ skipping 261 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const blink::DeprecatedPaintLayer*);
 void showLayerTree(const blink::LayoutObject*);
 #endif
 
 #endif // Layer_h