Allow explicit conversion operators and implement WTF::OwnPtr::operator bool.

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h

 /*
  * Copyright (C) 2009, 2010, 2011 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
@@ skipping 74 matching lines @@
 
     bool updateGraphicsLayerConfiguration();
     void updateGraphicsLayerGeometry(const PaintLayer* compositingContainer, const PaintLayer* compositingStackingContext, Vector<PaintLayer*>& layersNeedingPaintInvalidation);
 
     // Update whether layer needs blending.
     void updateContentsOpaque();
 
     GraphicsLayer* mainGraphicsLayer() const { return m_graphicsLayer.get(); }
 
     // Layer to clip children
-    bool hasClippingLayer() const { return m_childContainmentLayer; }
+    bool hasClippingLayer() const { return m_childContainmentLayer.get(); }
     GraphicsLayer* clippingLayer() const { return m_childContainmentLayer.get(); }
 
     // Layer to get clipped by ancestor
-    bool hasAncestorClippingLayer() const { return m_ancestorClippingLayer; }
+    bool hasAncestorClippingLayer() const { return m_ancestorClippingLayer.get(); }
     GraphicsLayer* ancestorClippingLayer() const { return m_ancestorClippingLayer.get(); }
 
     GraphicsLayer* foregroundLayer() const { return m_foregroundLayer.get(); }
 
     GraphicsLayer* backgroundLayer() const { return m_backgroundLayer.get(); }
     bool backgroundLayerPaintsFixedRootBackground() const { return m_backgroundLayerPaintsFixedRootBackground; }
 
-    bool hasScrollingLayer() const { return m_scrollingLayer; }
+    bool hasScrollingLayer() const { return m_scrollingLayer.get(); }
     GraphicsLayer* scrollingLayer() const { return m_scrollingLayer.get(); }
     GraphicsLayer* scrollingContentsLayer() const { return m_scrollingContentsLayer.get(); }
 
-    bool hasMaskLayer() const { return m_maskLayer; }
+    bool hasMaskLayer() const { return m_maskLayer.get(); }
     GraphicsLayer* maskLayer() const { return m_maskLayer.get(); }
 
-    bool hasChildClippingMaskLayer() const { return m_childClippingMaskLayer; }
+    bool hasChildClippingMaskLayer() const { return m_childClippingMaskLayer.get(); }
     GraphicsLayer* childClippingMaskLayer() const { return m_childClippingMaskLayer.get(); }
 
     GraphicsLayer* parentForSublayers() const;
     GraphicsLayer* childForSuperlayers() const;
     void setSublayers(const GraphicsLayerVector&);
 
-    bool hasChildTransformLayer() const { return m_childTransformLayer; }
+    bool hasChildTransformLayer() const { return m_childTransformLayer.get(); }
     GraphicsLayer* childTransformLayer() const { return m_childTransformLayer.get(); }
 
     GraphicsLayer* squashingContainmentLayer() const { return m_squashingContainmentLayer.get(); }
     GraphicsLayer* squashingLayer() const { return m_squashingLayer.get(); }
 
     void setSquashingContentsNeedDisplay();
     void setContentsNeedDisplay();
     // LayoutRect is in the coordinate space of the layer's layout object.
     void setContentsNeedDisplayInRect(const LayoutRect&, PaintInvalidationReason, const DisplayItemClient&);
 
@@ skipping 313 matching lines @@
 
     unsigned m_backgroundLayerPaintsFixedRootBackground : 1;
     unsigned m_scrollingContentsAreEmpty : 1;
 
     friend class CompositedLayerMappingTest;
 };
 
 } // namespace blink
 
 #endif // CompositedLayerMapping_h