Remove OwnPtr::release() calls in core/ (part 3).

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

 /*
  * 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 201 matching lines @@
 
 PassOwnPtr<GraphicsLayer> CompositedLayerMapping::createGraphicsLayer(CompositingReasons reasons, SquashingDisallowedReasons squashingDisallowedReasons)
 {
     OwnPtr<GraphicsLayer> graphicsLayer = GraphicsLayer::create(this);
 
     graphicsLayer->setCompositingReasons(reasons);
     graphicsLayer->setSquashingDisallowedReasons(squashingDisallowedReasons);
     if (Node* owningNode = m_owningLayer.layoutObject()->generatingNode())
         graphicsLayer->setOwnerNodeId(DOMNodeIds::idForNode(owningNode));
 
-    return graphicsLayer.release();
+    return graphicsLayer;
 }
 
 void CompositedLayerMapping::createPrimaryGraphicsLayer()
 {
     m_graphicsLayer = createGraphicsLayer(m_owningLayer.getCompositingReasons(), m_owningLayer.getSquashingDisallowedReasons());
 
     updateOpacity(layoutObject()->styleRef());
     updateTransform(layoutObject()->styleRef());
     updateFilters(layoutObject()->styleRef());
     updateBackdropFilters(layoutObject()->styleRef());
@@ skipping 2340 matching lines @@
     } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
         name = "Scrolling Contents Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink